"I hope my books can help children see the world in a different way, to notice the small details and the hidden meanings."
我活得越久，就越倾向于相信地球被其他星球用作疯人院。
Mathematics is not a spectator sport. You have to get involved.
"A personality is a full Congress of orators and pressure-groups, of children, demagogues, communists, isolationists, war-mongers, mugwumps, grafters, prayer-meetings, spiritualists, and astrologers."