In mathematics, the art of proposing a question must be held of higher value than solving it.
成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜;真正的英雄主义是抵制这种怀疑;最深刻的智慧是知道何时应该抵制,何时应该服从。
The whole is different from the sum of its parts.