There is no indispensable man.

Progressiveness means not standing still when everything else is moving.

A little group of willful men, representing no opinion but their own, have rendered the great government of the United States helpless and contemptible.

The history of liberty is the history of limitations on the power of government, not the increase of it. When we resist, therefore, the concentration of power, we are resisting the processes of death, because concentration of power is what always precedes the destruction of human liberties.

We have not given science too big a place in our education, but we have made a perilous mistake in giving it too great a preponderance in method in every other branch of study.

Music says nothing to the reason: it is a kind of closely structured nonsense.

I am a most unhappy man. I have unwittingly ruined my country.