There is no love that’s so right as admiration-based love, and that love should include the instructive dead. Somehow, I got that idea and I lived with it all my life and it’s been very very useful to me.

Black is a color of light, not of darkness.

Mathematics is the language with which God has written the universe.

Love is the strongest force in the world.

尝试一种方法是常识。如果失败了，坦率地承认并尝试另一种方法。但最重要的是，尝试一些事情。