(I'm a Chinese.Please excuse me for my English ability.) The world needs five revolutions overview: 1, abandon all false religions. 2, eliminate the elderly without ability and potential for work gradually, help and train weak youths and mid adults with potential value . 3, abandon all marriages and families, implement social upbringing and education for all children . 4, develop protective clothing and light weapons to resist physical violence,making females and short thin males release their potential better. 5, revise some English letters and soundmarks to unify letter form and soundmark of all English words. 1, Abandon all false religions. All religions can not properly explain phenomena in the universe. Physical or chemical dynamic balance between synthesis and decomposition of all kinds of substance constitute all phenomena in the universe. Photons synthesize proton, neutron and electron, then synthesize atom, compound , plant, animal and humankind;inversely dead people and animals are gradually broken down. Ther are some cases about dynamic balance: dynamic balance between all kinds of life and death in ecological system of society,dynamic balance between synthesis and decomposition of various cells in human body ,dynamic balance between pain and pleasure of everyone's whole life.When force of the universe (mainly solar force ) make synthesis of lives surpass decomposition of lives , human productivity can develop; conversely, humankind will retrogress or even die out. The universe seems as a massive spring system made up of countless dynamic springs that connect and influence one another. Every spring corresponds to one object or one particle, extension and retraction of spring correspond to decomposition and synthesis of substance.Every spring constantly extends or retracts and influences extension and retraction of other springs.Everyone is also like one spring in spring system, extension and retraction of spring respectively correspond to pain and pleasure of person, synthesis and decomposition of all substance in our environment can more or less influence our pain and pleasure. So powerful and metabolic force of environment is dominant force to everyone's fate , all gods do not exist. 2, eliminate the elderly without ability and potential for work gradually, help and train the weak youths and mid adults with potential value . At every specific natural condition, the universe gives humankind a survival quota,the quota is always too little so that all people struggle for survival. Allocating the limited chances for survival is responsibility of rulers of society , rulers should give chances for survival to the people who have ability or potential to repay the society . The elderly who have lost ability and potential for working live leisurely by pensions but can't repay the society. Though the pensions are what they ever payed they have lost social value now, their existence occupying survival quota of others and wasting social resources. The government should immediately stop to levy pension from workers ,gradually return pensions that people have payed and gradually abolish the rights of the elderly to get pensions . In future the government should compel the elderly who have been unemployed for two years to accept euthanasia. Only the rights of the elderly to get pensions are completely abolished society can permanently solve the problem of population's aging . Everyone should work until he is close to death . The people who work until the age of 98 and die at the age of 100 are human models; the people who work until the age of 65 and die at the age of 100 are human borers. In particular the countries such as China and India should abolish rights of the elderly to get pensions as soon as possible to reduce their population. If the elderly without value are eliminated youths and mid adults will get more chances for survival,the youths and mid adults who commit crime because of living pressure will reduce substantially. Social security will be improved substantially because youths and mid adults are the people with best ability for crime. The government should help all weak youths and mid adults with potential , giving them basic cost of living allowances, basic medical insurance and skills training opportunities. Help to them is not only help to social harmony but also investment behavior with social profit , because, the strong and the weak are not static, the weak with potential will be able to become the strong after training and create value for society. The strong and the weak shifting frequently is driving force of social development . 3, abandon all marriages and families, implement social upbringing and education for all children . (1) Love is foundation of marriage and family , need is foundation of love. Human needs change constantly with time and space so love is easy to deteriorate, true love is love with longer shelf life and false love is love with shorter shelf life. Marriage and family are fragile. (2) Existence of family seriously hinder optimal allocation of resources.Poorness, quarrel , fight,divorce or death of parents ,wrong interference and child-abuse from parents , will hinder development of children; and children's trouble can also impact life and work of parents. In short, family is baggage for parents and children, abolishing family will liberate parents and children and greatly improve efficiency of society. So people should seek temporary helpmates on the basis of metabolic needs and abandon all marriages and families. The society without marriage and family can work so: (1) Temporary couples give their child to government to support and educate, then they will be not the sociological parents but the biological parents of the child , there will be not any direct right and obligation between parents and children. (2)Government tax workers to establish some special places for fostering and educating healthy children at every area,hiring professional nurses and teachers .The children with inborn serious defects will be euthanized. (3) As all children will be adopted by the government women will not volunteer for the society to give birth to child. The government should reward all puerperae, enabling their fertility match population demand of society . (4) All adults may go to the places for fostering and educating children in their spare time to play with children with philanthropic mindset . 4, develop protective clothing and light weapons to resist physical violence,making females and short thin males release their potential better. Tall or strong males are the most powerful people of the society and act as leader roles in most key fields, oppressing and dominating females and other males. The weak and the ruled abidingly try to resist and challenge the strong and the rulers to gain more power, which is inexorable law of society and driving force of social development . It's absolutely impossible that tall or strong males will be able to dominate the society forever. Overall, the tall or strong males surpass others in physical strength and intelligence but their intellectual advantage comes from physical strength. Physical advantage makes them have sufficient self-defense ability, so that they can safely act in wider social space and have more development opportunities, they are the masters of the earth. Females and other males without sufficient self-defense ability can only live like vegetables in greenhouse cowardly and passively , they are only boarders on the earth , so their intellectual development is greatly restrained. Therefore, having sufficient self-defense ability is basic condition for the weak to challenge the strong. The United States has never one female president because females have never sufficient self-defense ability and social initiative. Guns can't adequately defend the weak so engineers should develop protective clothing , similar to spacesuit,and some nonlethal light weapons. Protective clothing must be bulletproof,knifeproof, coldproof and heatproof with rearview mirror and night-vision equipment thus the weak can get systemic protection from 360 degrees . Is this feasible?Problem is not technology but price of protective clothing, but its price will reduce to acceptable degree for most people with development of science and technology . With protective clothing and light weapons, the weak especially females will no longer fear and depend on tall or strong males and defeating the strong become possible. But all sorts of female clothing , cosmetics and the products for breast enlargement can only maintain or strengthen female vase role.The social cost to design, manufacture and use protective clothing and light weapons will be not more than the cost of female supplies such as cosmetics.People's trouble from wearing protective clothing is not greater than female trouble from wearing high-heeled shoes,remaining with long hair and using sun umbrella ,because people wear it only in dangerous outdoor environment. Once this kind of protective clothing popularize, tall or strong males will be unable to use physical violence and stature will be not their survival advantage but perhaps their burden . People will never worship and aspire for tall and strong stature so that all occupation sport games will disappear and intensity of all sports will reduce. All high intensity sports will be substantially modified or abandoned, for example , football field will be narrowed or football sport will be abandoned. Human food consumption will be substantially reduced, which is conducive to environmental protection. In future human gender differences will be mainly decided by intelligence and ideology, homosexuality will be more prevalent than now . Male androgen and aggressivity will reduce, female androgen and aggressivity will increase. If we judge from intelligence and ideology , there is not homosexuality in the past, now and in future. 5, revise some English letters and soundmarks to unify letter form and soundmark of all English words. Unifying letter form and soundmark of all English words can simplify present English greatly, present English needs following revisal: ( 1)Merge all equivocal soundmarks: [a:]+[∧]=[a];[כ]+[:כ]=[o]; [i:]+=;[u:]+=;[ə:]+[ə]=[ə] ; [æ]+[e]=[e]; [l]+[δ]=[l];[з]+[dз]=[з];[z]+[dz]=[z];[n]+[ŋ]=[n] ( 2)Let " θ,∫, з,ə" displace "q, x, y,c " as there are not [q], [x] ,[y]and [c] . So there are 6 single vowels and 20 single consonants , the 26 soundmarks just match the 26 letters and the letter combinations " iə,eə,əu,au,ei,ai,uə,oi" respectively match " [iə],[eə],[əu],[au],[ei],[ai],[uə],[oi]", and the consonant combinations also follow the same rules.Let "[a], [e], , [o], , [ə]" become the soundmarks of the vowel letters "a, e, i, o, u, ə" . Delete all silent letters in all words and revise most words according to above rules.For example,Ingli∫ displace English，əmerikə displace America， Juərəp displace Europe， t∫ainə displace China，Ra∫ə displace Russia，osiзən displace oxygen，ju displace you，kwest displace quest，∫uə displace sure，.t∫est displace chest, keibl displace cable。So that we can unify letter form and soundmark of all English words,and English will become more simple. I have not explored how to simply identify the stressed syllable of words but I think this ploblem is not difficult. Some British soundmarks can't be seen in this forum.