Every word was once a poem.

Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.

Culture implies all which gives the mind possession of its own powers, as languages to the critic, telescope to the astronomer. Culture alters the political status of an individual. It raises a rival royalty in a monarchy. 'Tis king against king. It is ever a romance of history in all dynasties--the co-presence of the revolutionary force in intellect. It creates a personal independence which the monarch cannot look down, and to which he must often succumb.

Speak what you think today in hard words and tomorrow speak what tomorrow thinks in hard words again, though it contradict every thing you said today.

I knew a witty physician who found theology in the biliary duct, and used to affirm that if there was a disease in the liver, the man became a Calvinist, and if that organ was sound, he became a Unitarian.

A man should give us a sense of mass.

The earth is a machine which yields almost gratuitous service to every application of intellect. Every plant is a manufacturer of soil. In the stomach of the plant development begins. The tree can draw on the whole air, the whole earth, on all the rolling main. The plant is all suction-pipe,--imbibing from the ground by its root, from the air by its leaves, with all its might.