Doubt is not a pleasant condition, but certainty is absurd.

Paradise is where I am

In this country we find it pays to shoot an admiral from time to time to encourage the others.

I never approved either the errors of his book, or the trivial truths he so vigorously laid down. I have, however, stoutly taken his side when absurd men have condemned him for these same truths.

It is the characteristic of the most stringent censorships that they give credibility to the opinions they attack.

Our wretched species is so made that those who walk on the well-trodden path always throw stones at those who are showing a new road.

We admit, in geometry, not only infinite magnitudes, that is to say, magnitudes greater than any assignable magnitude, but infinite magnitudes infinitely greater, the one than the other. This astonishes our dimension of brains, which is only about six inches long, five broad, and six in depth, in the largest heads.