战争不会消灭正直，它反而更需要正直——比和平时期更需要。
The greatest thing in style is to have a command of metaphor.
The dead are more faithful than the living. They do not change.
Mathematics is not a spectator sport.
从理智的异议中寻找乐趣，因为只有尊重理智，才能比消极的服从带来更深刻的一致。