The best way to learn mathematics is to do mathematics.

程朱理学和陆王心学同属理学的范畴，他们都坚持天理是宇宙万物的本源，只是程朱理学认为天理独立于人体之外，若想找寻天理必须通过格物致知的方法才能有所成就，故程朱理学属于哲学派别中的客观唯心主义；而陆王心学则认为天理存在于人的内心深处必须通过反省自身，摒除欲望才能达到对天理的体悟，故属哲学派别中的主观唯心主义。

The best preparation for tomorrow is doing your best today.

科学是一种探索未知的冒险，每一次发现都是对自然的一次新的理解。

At that age， I'd take any excuse to make estimates and do minor arithmetic. I'd calculate our gas mileage -- figure out useless statistics on things like grocery spending. I'd been hearing an ad campaign about smoking. I can't remember the details， but basically the ad said， every puff of a cigarette takes some number of minutes off of your life: I think it might have been two minutes per puff. At any rate， I decided to do the math for my grandmother. I estimated the number of cigarettes per days， estimated the number of puffs per cigarette and so on. When I was satisfied that I'd come up with a reasonable number， I poked my head into the front of the car， tapped my grandmother on the shoulder， and proudly proclaimed， "At two minutes per puff， you've taken nine years off your life！"

适应能力是在快速变化的世界中保持相关性的关键。

笑是最好的治疗方式。

花园的灵魂庇护着人的孤独。