“To have doubted one's own first principles is the mark of a civilized man.”

“I like to pay taxes. With them, I buy civilization.”

“For I say to you in all the sadness of conviction, that to think great thoughts you must be heroes as well as idealists. Only when you have worked alone – when you have felt around you a black gulf of solitude more isolating than that which surrounds the dying man, and in hope and in despair have trusted to your own unshaken will – then only will you have achieved. Thus only can you gain the secret isolated joy of the thinker, who knows that, a hundred years after he is dead and forgotten, men who have never heard of him will be moving to the measure of his thought – the subtle rapture of a postponed power, which the world knows not because it has no external trappings, but which to his prophetic vision is more real than that which commands an army.”

“I think that, as life is action and passion, it is required of a man that he should share the passion and action of his time at peril of being judged not to have lived.”

“It is better for all the world, if instead of waiting to execute degenerate offspring for crime or to let them starve for their imbecility, society can prevent those who are manifestly unfit from continuing their kind. The principle that sustains compulsory vaccination is broad enough to cover cutting the fallopian tubes. Three generations of imbeciles are enough.”

“The first requirement of a sound body of law is, that it should correspond with the actual feelings and demands of the community, whether right or wrong.”

“We believed that it was most desirable that the North should win, we believed in the principle that the Union is indissoluable, we, or many of us at least, also believed that the conflict was inevitable, and that slavery had lasted long enough. But we equally believed that those who stood against us held just as sacred conviction that were the opposite of ours, and we respected them as every men with a heart must respect those who give all for their belief.”