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The greatest sweetener of human life is Friendship. To raise this to the highest pitch of enjoyment, is a secret which but few discover.

I don't think about medals. I think about my performance.

To each appearance， as it arises， we should oppose the equal appearance.

The most important thing is to try and inspire people so that they can be great in whatever they want to do.

隨機實驗是因果推理的黃金標準，但它們并不總是可行的。

從孩子出生的那一刻起，刺激就開始作用于他。