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Psychology should be the science of mental life, both of its phenomena and of their conditions.

計算復雜性的本質是理解什么可以被有效地計算的極限。

The beginning is always today.

The future of physics lies in the unification of quantum mechanics and general relativity.

解釋：眾人的憤怒不可觸犯，個人專權的欲望難以成功。

Quality is the lifeline of an enterprise.

你的利潤空間就是我的機會。

Ignorance is easier to get than knowledge.