所有的思想都以独特的方式脉动，就像世界上的每座灯塔都有独特的签名一样。有些头脑的脉动始终如一，有些则不稳定。有些是微温的，有些是热的。有些会突然爆发，有些则几乎不存在。有些停留在边缘，比如类星体。
(All minds pulse in a unique way, just as every lighthouse in the world has a unique signature. Some minds pulse consistently, some erratically. Some are lukewarm, some are hot. Some flare out, some are very nearly not there. Some stay on the fringe, like quasars.)
