What were the glories of the sun, if we knew not the gloom of darkness?

Equality is the soul of liberty; there is, in fact, no liberty without it.

Religion may be defined thus: a belief in, and homage rendered to, existences unseen and causes unknown.

The best road to correct reasoning is by physical science; the way to trace effects to causes is through physical science; the only corrective, therefore, of superstition is physical science.

It is singular to look round upon a country where the dreams of sages, smiled at as utopian, seem distinctly realized, a people voluntarily submitting to laws of their own imposing, with arms in their hands respecting the voice of a government which their breath created and which their breath could in a moment destroy!

Instead of establishing facts, we have to overthrow errors; instead of ascertaining what is, we have to chase from our imaginations what is not.

The knowledge of one generation is the ignorance of the next.