We cannot define anything precisely. If we attempt to, we get into the paralysis of thought that comes to philosophers, who sit opposite each other, one saying to the other, "You don't know what you are talking about!" The second one says, "What do you mean by know? What do you mean by talking? What do you mean by you?"
Richard P. FeynmanThe only way to deep happiness is to do something you love to the best of your ability
Richard P. FeynmanWe are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.
Richard P. Feynman