And let's not kid ourselves here. According to religious dogma, being kind isn't enough. Every religion says if you don't follow such and such religious book, then you're going to hell.
Not true. The Catholic Catechism discusses this. First it notes that God has an everlasting covenant with Jews. It goes on to say that Christ gave Christians a mission to take the Good News and all he taught to the world--that it is The Way to the Kingdom of God. Now, the Catholic Church can promise its teachings--handed down by the Apostles from Christ--are The Way to the Kingdom of God, because we have Christ's promise that they are. The Church has the authority to proclaim this.
However, the Catholic Church has no authority to promise those of other denominations, religions and faiths that their particular teachings are also The Way to the Kingdom of God. The Catechism states that the Church hands down what Jesus taught, and those who follow other paths are left in the loving and merciful hands of God. And yes, this includes agnostics and atheists who may also be following the ways of God, yet do not have a belief in God. Having no belief is much different than rejecting God and His ways.