The lakes are something which you are unprepared for; they lie up so high, exposed to the light, and the forest is diminished to a fine fringe on their edges, with here and there a blue mountain, like amethyst jewels set around some jewel of the first water, - so anterior, so superior, to all the changes that are to take place on their shores, even now civil and refined, and fair as they can ever be.
Henry David ThoreauHe is not a true man of science who does not bring some sympathy to his studies, and expect to learn something by behavior as well as by application. It is childish to rest in the discovery of mere coincidences, or of partial and extraneous laws. The study of geometry is a petty and idle exercise of the mind, if it is applied to no larger system than the starry one. Mathematics should be mixed not only with physics but with ethics; that is mixed mathematics. The fact which interests us most is the life of the naturalist. The purest science is still biographical.
Henry David ThoreauYou boast of spending a tenth part of your income in charity; may be you should spend the nine tenths so, and done with it.
Henry David ThoreauA man must find his occasions in himself, it is true. The natural day is very calm, and will hardly reprove his indolence.
Henry David Thoreau