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The principle of asceticism never was， nor ever can be， consistently pursued by any living creature.

國家本質(zhì)上是具有侵略性和擴(kuò)張性的。

The first duty of a man is to think for himself.

The trees are our elders, and they have much to teach us.

A government that fears its people is a government that has lost its legitimacy.

讓中國人吃飽飯是我們這代科學(xué)家的使命。