Reading is to the mind what exercise is to the body.

Liberty cannot be preserved without a general knowledge among the people.

我永远无法安全；我总是试图逆流而上。每当我完成一件事，我就会设定一个更高的目标。这就是我走到今天的方式。

The scientist is not a person who gives the right answers, he's one who asks the right questions.

You get what you give. What you put into things is what you get out of them.

Grain isn't just a commodity; it's the foundation of civilizations.

Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.

书籍可能是危险的。最好的书应该贴上“这可能会改变你的生活”的标签。