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Behavior, as such, is not to be regarded as a mere chain of muscular contractions, but rather as a purposive and cognitive affair.

Legal obligations are not merely moral obligations backed by sanctions.

The only way to truly understand something is to do it yourself.

成就的唯一途徑是熱愛自己的事業，如果你還沒找到的話，繼續尋找，不要屈就。

The only limit to your success is your own imagination.

生活不是如何在風暴中生存，而是如何在雨中起舞。