心理学必须研究思维和行为的适应功能。

You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself.

Quality is remembered long after the price is forgotten.

认为世界上只有一种真理，而自己恰好掌握了它，在我看来这是世界上一切邪恶的最深根源。