最后再摘录几句S大人给自己的书写的前言(抬头部分有点像诗):Do not ask permission to understand./ Do not wait for the word of authority. / Seize reason in your own hand./ With you own teeth savor the fruit. (感觉大人S受过压迫或蒙蔽似的,咬牙切齿的。) 他的第一段是这样开头的:Mathematics is more than a collection of theorems, definitions, problems and techniques; it is a ...The same can be said about an individual branch of mathematics, such as ... (省略号是我给加上的,卖个关子^_6)(看看人家写的,再看看。。。写的)