Fashions, after all, are only induced epidemics.

When a man teaches something he does not know to somebody else who has no aptitude for it, and gives him a certificate of proficiency, the latter has completed the education of a gentleman.

The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one.

I was a freethinker before I knew how to think.

Blasphemy and sedition (meaning the truth about Church and State).

Life is a flame that is always burning itself out; but it catches fire again every time a child is born. Life is greater than death, and hope than despair.

Fashions are the only induced epidemics, proving that epidemics can be induced by tradesmen.