“Every revolution was first a thought in one man's mind, and when the same thought occurs to another man, it is the key to that era.”

“When the eyes say one thing, and the tongue another, a practical man relies on the language of the first.”

“Of the works of this mind history is the record. Its genius is illustrated by the entire series of days. Man is explicable by nothing less than all his history. Without hurry, without rest, the human spirit goes forth from the beginning to embody every faculty, every thought, every emotion, which belongs to it, in appropriate events. But the thought is always prior to the fact; all the facts of history preexist in the mind as laws. Each law in turn is made by circumstances predominant, and the limits of nature give power to but one at a time. A man is the whole encyclopaedia of facts. The creation of a thousand forests is in one acorn, and Egypt, Greece, Rome, Gaul, Britain, America, lie folded already in the first man. Epoch after epoch, camp, kingdom, empire, republic, democracy, are merely the application of his manifold spirit to the manifold world.”

“What is the scholar, what is the man for, but for hospitality to every new thought of his time? Have you leisure, power, property, friends? you shall be the asylum and patron of every new thought, every unproven opinion, every untried project, which proceeds out of good will and honest seeking. All the newspapers, all the tongues of to-day will of course at first defame what is noble; but you who hold not of to-day, not of the times, but of the Everlasting, are to stand for it: and the highest compliment, man ever receives from heaven, is the sending to him its disguised and discredited angels.”

“The key to every man is his thought. Sturdy and defying though he look, he has a helm which he obeys, which is the idea after which all his facts are classified. He can only be reformed by showing him a new idea which commands his own.”

“A man should learn to detect and watch that gleam of light which flashes across his mind from within, more than the lustre of the firmament of bards and sages. Yet he dismisses without notice his thought, because it is his. In every work of genius we recognize our own rejected thoughts: they come back to us with a certain alienated majesty.”

“the sense of being which in calm hours arises, we know not how, in the soul, is not diverse from things, from space, from light, from time, from man, but one with them and proceeds obviously from the same source.... Here is the fountain of action and of thought.... We lie in the lap of immense intelligence.”