The only reason why we wish to exchange thoughts is that we are different. If we were all the same, we would die dumb. No thought would be expressed after we found that our thoughts were precisely alike. We differ-our thoughts are different. Therefore the commerse that we call conversation.

In our era, the road to holiness necessarily passes through the world of action.

Small people delight in what they call consistency-that is, it gives them immense pleasure to say that they believe now exactly as they did ten years ago. This simply amounts to a certificate that they have not grown-that they have not developed-and that they know just as little now as they ever did. The highest possible conception of consistency is to be true to the knowledge of today, without the slightest reference to what your opinion was years ago.

What light is to the eyes - what air is to the lungs - what love is to the heart, liberty is to the soul of man.

Our civilization is not Christian. It does not come from the skies. It is not a result of inspiration. It is the child of invention, of discovery, of applied knowledge - that is to say, of science. When man becomes great and grand enough to admit that all have equal rights; when thought is untrammeled; when worship shall consist in doing useful things; when religion means the discharge of obligations to our fellow-men, then, and not until then, will the world be civilized.

The history of intellectual progress is written in the lives of infidels.

Every pulpit is a pillory, in which stands a hired culprit, defending the justice of his own imprisonment.