Nothing is great but the inexhaustible wealth of nature.

We prize books, and they prize them most who are themselves wise.

Every man supposes himself not to be fully understood; and if there is any truth in him, if he rests at last on the divine soul, I see not how it can be otherwise. The last chamber, the last closet, he must feel, was never opened; there is always a residuum unknown, unanalyzable. That is, every man believes that he has a greater possibility.

Not for nothing one face, one character, one fact makes much impression on him, and another none.

Explore, and explore. Be neither chided nor flattered out of your position of perpetual inquiry. Neither dogmatize or accept another's dogmatism.

We want but two or three friends, but these we cannot do without, and they serve us in every thought we think.

Every great institution is the lengthened shadow of a single man. His character determines the character of the organization.