What I began by reading, I must finish by acting.

It is a ridiculous demand which England and America make, that you shall speak so that they can understand you. Neither men nor toadstools grow so.

The universe expects every man to do his duty in his parallel of latitude.

The true poem is not that which the public read. There is always a poem not printed on paper,... in the poet's life. It is what hehas become through his work. Not how is the idea expressed in stone, or on canvas or paper, is the question, but how far it has obtained form and expression in the life of the artist. His true work will not stand in any prince's gallery.

Men talk glibly enough about moonshine, as if they knew its qualities very well, and despised them; as owls might talk of sunshine,--none of your sunshine!--but this word commonly means merely something which they do not understand,--which they are abed and asleep to, however much it may be worth their while to be up and awake to it.

He 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.

It is hard to have a Southern overseer; it is worse to have a Northern one; but worst of all when you are yourself the slave-driver.