Our passion for learning ... is our tool for survival.
Man cannot remake himself without suffering, for he is both the marble and the sculptor.
The goal is not to be better than the other man, but your previous self.
Security is mostly a superstition. It does not exist in nature, nor do the children of humans as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing.
Don't underestimate the importance of a life well-lived.