The best way of learning about anything is by doing.

Efficiency is doing things right; effectiveness is doing the right things.

"A good book is a door to another world."

社会系统是个人之间以及群体之间关系的系统。

I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.

实际的无限出现在三种情况下：首先，当它以最完整的形式实现时，在一个完全独立的超然存在中，在上帝中，我称之为绝对无限或简称为绝对；其次，当它出现在偶然的、被创造的世界中时；第三，当心灵在抽象中把握它作为数学量、数字或顺序类型时。

（均平的状态下，水）保有内蕴，而外部毫无所动。

The poem is an act of the mind, not a transcription of the world.