凡是教师缺乏爱的地方，无论品格还是智慧都不能充分地或自由地发展。

当我们谈论一个词的“意义”时，首先我们在谈论一种特定的行为。

The most profound discoveries often start with simple observations.

痛苦的源头是无知。

The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential.

生而贫穷是意外，但死于贫穷是选择。

未来取决于你现在做什么。

学习的最好方式是教学。