Every scientific discovery is a new dialogue with nature, bringing us closer to the mysteries of the universe.

Mathematics is not a spectator sport. You have to do it to understand it.

The world is indeed full of peril, and in it there are many dark places; but still there is much that is fair, and though in all lands love is now mingled with grief, it grows perhaps the greater.

爱是一种严重的精神疾病。