男女正，天地之大义也。家人有严君焉，父母之谓也。父父，子子，兄兄，弟弟，夫夫，妇妇，而家道正，正家而天下定矣。

释义：男女都守持正固（坚持正确的、忠诚不改变），是天地间的大道。家人中有严君，严君是对父母的称谓。父亲遵守父道，儿子遵守子道，兄遵兄道，弟遵弟道，丈夫守夫道，妻子遵守妇道，则家道正固；家道正固则天下就会安定。

伏羲

子曰：温故而知新，可以为师矣。

孔子

与别人交流有助于自己的思想的修养。

蒙田

To do mathematics is to explore a universe of ideas, where the only limit is your imagination.

做数学就是探索一个思想的宇宙，唯一的限制是你的想象力。

米哈伊尔·格罗莫夫

悬念是可怕的。我希望它一直延续下去。

王尔德

I was working at a financial firm in New York City with a bunch of very smart people， and I had a brilliant boss that I much admired. I went to my boss and told him I wanted to start a company selling books on the Internet. He took me on a long walk in Central Park， listened carefully to me， and finally said， "That sounds like a really good idea， but it would be an even better idea for someone who didn't already have a good job." That logic made some sense to me， and he convinced me to think about it for 48 hours before making a final decision. Seen in that light， it really was a difficult choice， but ultimately， I decided I had to give it a shot. I didn't think I'd regret trying and failing. And I suspected I would always be haunted by a decision to not try at all. After much consideration， I took the less safe path to follow my passion， and I'm proud of that choice.

我当时在纽约一家金融公司工作，同事是一群非常聪明的人，我的老板也很有智慧，我很羡慕他。我告诉我的老板我想开办一家在网上卖书的公司。他带我在中央公园漫步良久，认真地听我讲完，最后说："听起来真是一个很好的主意，但是对那些目前没有谋到一份好工作的人来说，这个主意会更好。"这一逻辑对我而言颇有道理，他说服我在最终作出决定之前再考虑48小时。那样想来，这个决定确实很艰难，但是最终，我决定拼一次。我认为自己不会为尝试过后的失败而遗憾，倒是有所决定但完全不付诸行动会一直煎熬着我。在深思熟虑之后，我选择了那条不安全的道路，去追随我内心的热情。我为那个决定感到骄傲。

杰夫·贝索斯

To know is nothing at all; to imagine is everything.

知道什么都不是；想象才是一切。

阿纳托尔·法朗士

生命是一团欲望，欲望不满足便痛苦，满足便无聊。人生就在痛苦和无聊之间摇摆。

叔本华

一个人要从远处回，从高处下，从深处出。

木心

一个人的行为应该以道德和理性为准则，而不是以个人的欲望为导向。

约翰·洛克

We read the world wrong and say that it deceives us。

我们把世界看错了，反说它欺骗我们。