You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject forever.

The source of every crime, is some defect of the understanding; or some error in reasoning; or some sudden force of the passions.

通过贪婪的阅读，成为一个终身自学者；培养好奇心，努力让自己每天都变得更聪明一点。

If you're not moving forward, you're falling behind.

译文：很幸运生在太平年代，害怕到了年老时日不多。赏析：人生短暂，生命脆弱，我们要珍惜当下的生活，过好每一天，身在福中要知福。

The true value of a mathematician lies in the problems they leave behind.

People, even more than things, have to be restored, revived, reclaimed and redeemed; never throw out anyone.