You can't change what's already happened, so focus on the present moment.

计算效率的概念是学习算法设计的核心。

自由是做法律允许的事情的权利。

If you lose or forget to bring a cable，adapter or charger，check with your hotel. Most hotels now have a drawer full of cables，adapters and chargers others have left behind，and probably have the one you are missing. You can often claim it after borrowing it.

可持续性不是一种选择；它是长期成功的必要条件。

For those who live for a reason, every moment is a new opportunity.

我们看到的似乎疯狂的世界是一个不起作用的信仰体系的结果。

一个人对于死亡的恐惧程度与其财富的增长程度成正比。