Let us, then, be what we are; speak what we think; and in all things keep ourselves loyal to truth.

Men should soon make up their minds to be forgotten, and look about them, or within them, for some higher motive in what they do than the approbation of men, which is fame, namely, their duty; that they should be constantly and quietly at work, each in his sphere, regardless of effects, and leaving their fame to take care of itself.

I do not believe anyone can be perfectly well, who has a brain and a heart

Perseverance is a great element of success. If you only knock long enough and loud enough at the gate, you are sure to wake up somebody.

It takes less time to do a thing right, than it does to explain why you did it wrong.

The strength of criticism lies in the weakness of the thing criticized.

The natural alone is permanent. Fantastic idols may be worshipped for a while; but at length they are overturned by the continual and silent progress of Truth, as the grim statues of Copan have been pushed from their pedestals by the growth of forest-trees, whose seeds were sown by the wind in the ruined walls.