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。

The ground for taking ignorance to be restrictive of freedom is that it causes people to make choices they would not have made had they seen what their choices involved.

舞台是灵魂的战场。

天才是癫痫类群的一种退化性精神病。