智力不仅仅是推理的能力；它还包括在记忆中寻找相关材料并在需要时调动注意力的能力。
最好的文学是挑战我们、让我们思考、迫使我们面对存在的不舒服真相的文学。
The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.
在数学中，提出问题的艺术必须比解决问题更有价值。
不要一直重复犯错；试着去犯新的错。
Prophesying was the only human art that couldn't be improved by practice.
