所有人都存在危险。自由政府的唯一准则应该是不要信任任何拥有权力的人，以免危及公共自由。
There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.
鸟快要死的时候，叫声是悲切的，人快要死的时候，说话是善良的。
Anyone who keeps the ability to see beauty never grows old.
The theory of probabilities is at bottom nothing but common sense reduced to calculus.