函数的概念在数学中是基础的，而λ演算试图使这一概念精确化。

Thought's infidelity lies in its privacy. 'If there is something that you cannot say to me,' asks the lover, 'things that you must think alone, then can you really be trusted?'

"The best performance improvement is the transition from the nonworking state to the working state."

The challenge is to make the ordinary extraordinary.