He who has mingled in the fray of duty that the brave endure, must have made foes. If you have none, small is the work that you have done.

An arrow may fly through the air and leave no trace; but an ill thought leaves a trail like a serpent.

But the sunshine aye shall light the sky, As round and round we run; And the truth shall ever come uppermost, And justice shall be done.

Extraordinary Popular Delusions and the Madness of Crowds

Much as the sage may affect to despise the opinion of the world, there are few who would not rather expose their lives a hundred times than be condemned to live on, in society, but not of it - a by-word of reproach to all who know their history, and a mark for scorn to point his finger at.

Aid the dawning, tongue and pen; Aid it, hopes of honest men!

The study of the errors into which great minds have fallen in the pursuit of truth can never be uninstructive. . . No man is so wise but that he may learn some wisdom from his past errors, either of thought or action, and no society has made such advances as to be capable of no improvement from the retrospect of its past folly and credulity.