The spirit of the time is felt by every individual with some difference, — to each one casting its light upon the objects nearest to his temper and habits of thought; — to one, coming in the shape of special reforms in the state; to another, in modifications of the various callings of men, and the customs of business; to a third, opening a new scope for literature and art; to a fourth, in philosophical insight; to a fifth, in the vast solitudes of prayer. It is in every form a protest against usage, and a search for principles. In all its movements, it is peaceable, and in the very lowest marked with a triumphant success. Of course, it rouses, the opposition of all which it judges and condemns, but it is too confident in its tone to comprehend an objection, and so builds no outworks for possible defence against contingent enemies. It has the step of Fate, and goes on existing like an oak or a river, because it must.
—Ralph Waldo Emerson, The Editor to the Readers in The Dial, vol. 1, no. 1 (July 1840)