Theorems are eternal; their proofs are ephemeral.
闡釋是智力對(duì)藝術(shù)的報(bào)復(fù)。
You can fool all the people some of the time, some of the people all the time, but you cannot fool all the people all the time.
質(zhì)量意味著在無(wú)人監(jiān)督時(shí)也能把事情做對(duì)。
It is no use doing what you like;you have got to like what you do.