I think therefore I am has been discarded; we should say, I feel therefore I am.

The rocks we extract today build the infrastructure of tomorrow.

The study of mental processes requires both experimental and comparative methods.

Challenges are opportunities in disguise; embrace them with courage.

Every murder leaves two victims: the deceased and the killer.

立法机构不能将立法权移交给其他人，因为它只是从人民那里授权来的，拥有立法权的人不能将其转让给他人。

There is no man, however wise, who has not at some period of his youth said things, or lived in a way the consciousness of which is so unpleasant to him in later life that he would gladly, if he could, expunge it from his memory.

It is silly not to hope, he thought.