Drive a nail home and clinch it so faithfully that you can wake up in the night and think of your work with satisfaction - a work at which you would not be ashamed to invoke the muse.
Henry David ThoreauDon't spend your time in drilling soldiers, who may turn out hirelings after all, but give to undrilled peasantry a country to fight for.
Henry David ThoreauWhat avail all your scholarly accomplishments and learning, compared with wisdom and manhood? To omit his other behavior, see whata work this comparatively unread and unlettered man wrote within six weeks. Where is our professor of belles-lettres, or of logic and rhetoric, who can write so well?
Henry David ThoreauWe cannot see anything until we are possessed with the idea of it, take it into our heads,--and then we can hardly see anything else.
Henry David ThoreauStrange that so few ever come to the woods to see how the pine lives and grows and spires, lifting its evergreen arms to the light,--to see its perfect success; but most are content to behold it in the shape of many broad boards brought to market, and deem that its true success! But the pine is no more lumber than man is, and to be made into boards and houses is no more its true and highest use than the truest use of a man is to be cut down and made into manure.
Henry David Thoreau