The notion of truth is not definable in any formal system that is strong enough to include arithmetic.
真理的概念在任何足够强大以包含算术的形式系统中都是不可定义的。
推动一个年代的是个性,不是原则。
Ignorance is not innocence but sin.
A poet must be like a tree, rooted in his native soil, drawing nourishment from it to bear fruit.