如果你开心得太久,就会变得平庸。
要这样行动,使得你意志的准则任何时候都能同时被看作一个普遍立法的原则。
Mathematics is the art of giving the same name to different things.
Life is not about waiting for the storm to pass, but learning to dance in the rain.
你的价值不会因为别人看不到你的价值而降低。
Drawing makes you see things clearer, and clearer and clearer.