Our lives are universally shortened by our ignorance.

Agnostics are people who, like myself, confess themselves to be hopelessly ignorant concerning a variety of matters, about which metaphysicians and theologians, both orthodox and heterodox, dogmatize with the utmost confidence.

How often misused words generate misleading thoughts.

The Republican form of government is the highest form of government: but because of this it requires the highest type of human nature, a type nowhere at present existing.

Never educate a child to be a gentleman or lady alone, but to be a man, a woman.

The "Creed of Christendom" is alien to my nature, both emotional and intellectual.

That feelings of love and hate make rational judgments impossible in public affairs, as in private affairs, we can clearly enough see in others, though not so clearly in ourselves.