I must remind you that our credulity is not to be measured by the truth of the things we believe. When men believed that the earthwas flat, they were not credulous: they were using their common sense, and, if asked to prove that the earth was flat, would have said simply, "Look at it." Those who refuse to believe that it is round are exercising a wholesome skepticism.

If the English can survive their food, they can survive anything.

Never repeat old grievances.

The test to which all methods of treatment are finally brought is whether they are lucrative to doctors or not.

Any belief worth having must survive doubt

The first prison I ever saw had inscribed on it CEASE TO DO EVIL: LEARN TO DO WELL; but as the inscription was on the outside, the prisoners could not read it.

The test of good education is seeing how it behaves in a fight.