Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
数学不是沿着一条清理得很好的高速公路小心行进，而是进入一个陌生的荒野的旅程，探险者常常会迷路。
爱情是有魔力的，但如果放弃责任，这份魔力就会消失。
It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent.
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.
写作是进入未知的旅程，是在充满神秘的世界中寻求理解。
