当一种程序语言的程序需要引起注意时，它是低级的。

函数的概念在数学中是基础的，而λ演算提供了一种形式化这一概念的方法。

To try to write love is to confront the muck of language: that region of hysteria where language is both too much and too little, excessive and impoverished.

人的成长和发展是领导力的最高使命。