The better one is morally the less aware they are of their virtue.

Of all the evil spirits abroad at this hour in the world, insincerity is the most dangerous.

The superstition of science scoffs at the superstition of faith.

Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing in itself.

A single seed of fact will produce in a season or two a harvest of calumnies; but sensible men will pay no attention to them.

We live merely on the crust or rind of things.

The solitary side of our nature demands leisure for reflection upon subjects on which the dash and whirl of daily business, so long as its clouds rise thick about us, forbid the intellect to fasten itself.