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The psychologist must be a strict empiricist.

The most important thing is to keep thinking, keep questioning.

農業的效率不僅僅是產量的問題；它關乎資源管理。

成功是一種心態。如果你想成功，就要開始把自己看作一個成功者。

Never take yourself too seriously. Nobody else does.

預測未來的最好方式就是創造未來。

The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.