"The greatest tragedy is not the brutality of the bad people, but the silence of the good people."

We must not be afraid to be wrong, for only by being wrong can we learn and progress.

The beginning of wisdom is the definition of terms.

The true measure of a leader is how they empower others to succeed.

A theory should not attempt to explain all the facts, because some of the facts are wrong.

信仰是对上帝恩典的一种活生生的、大胆的信任，如此确定和肯定，以至于一个人可以一千次地赌上自己的生命。

心理学必须研究思维和行为的适应功能。