I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself.

In the realm of quantum mechanics, the observer and the observed are inextricably linked, challenging our classical notions of reality.

市场总是在变化，你的策略也应该如此。

Die Kunst des Lebens besteht darin, Schwierigkeiten zu überwinden, ohne sie zu besiegen.

国际关系没有永远的朋友或敌人，只有永远的利益。