反应倾向的强度取决于所接受的强化量。

质量不是职位；它是一种实践。

The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind.

The best leaders are those who create more leaders, not more followers.

科学不是一场竞赛；而是一场耐心与精确的旅程。