在好处中要取大的，在害处中要取小的。在生活中会遇到好处，也会遇到坏处。对待好处，无疑应择其大者而取之，以获取最佳利益；对坏处，能避免则避免，不能避免则择其小者而取之，以最大限度地减少损失。

路途再近，你不走，也不会到达。事情再小，不去做也不可能完成。

心理学必须是一门纯粹描述性的科学。

"Words are the bricks with which we build the houses of our imagination."

No individual has any right to come into the world and go out of it without leaving behind him distinct and legitimate reasons for having passed through it.