Discuss. Lying is the deliberate saying of a falsehood with the motivation to deceive. Can anyone but a mind reader know another person's motives truly? If I say the sky is blue, even though the evidence from the clouds is that it is gray, am I lying? Is the sky really gray? No, the sky is neither gray nor blue. The sky appears gray and blue at times due to circumstances. What is the "true" color of the sky? The question of what is truth is profoundly spiritual.