艺术是永恒的，生命是短暂的。
Art is eternal, life is fleeting.
The task of psychology is to discover the laws of mental structure.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Policymakers should be open to revising their views based on new evidence.
To be a diplomat is to be a professional liar, but the best diplomats are those who lie the least.