Rien de plus cher que la chanson grise / Où l’Indécis au Précis se joint.

Diplomacy is not an end in itself if it does not advance the interests of the nation.

Make yourself necessary to someone.

There is nothing which I dread so much as a division of the republic into two great parties, each arranged under its leader, and concerting measures in opposition to each other.

统一自然界所有力的挑战是一个多世纪以来推动理论物理学发展的动力。

走出去不是目的，走进去才是我们的目标。