The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.

I do not lack the courage to think a thought all the way through, and thus far I have encountered no thought that I have feared.

挑战是伪装的机会；用勇气拥抱它们。

Life is about making mistakes and learning from them. That's how you grow.