La lumière est dans le livre. Ouvrez le livre tout grand. Laissez-le rayonner, laissez-le faire.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

Never risk more than you can afford to lose.

没有社会这种东西，只有个人和家庭。

A thing is not necessarily either true or false; it can be both true and false.

预测未来的唯一方法是创造未来。