Go ahead and do the impossible. It's worth the look on the faces of those who said you couldn't.

In the faculty of writing nonsense, stupidity is no match for genius.

The maxim of science is simply that of common sense-simple cases first; begin with seeing how the main force acts when there is as little as possible to impede it, and when you thoroughly comprehend that, add to it in succession the separate effects of each of the incumbering and interfering agencies.

The most essential mental quality for a free people, whose liberty is to be progressive, permanent and on a large scale, is much stupidity.

To a great experience one thing is essential, an experiencing nature.

The most melancholy of human reflections, perhaps, is that, on the whole, it is a question whether the benevolence of mankind does most good or harm.

An ambassador is not simply an agent; he is also a spectacle.