Prudence never kindled a fire in the human mind; I have no hope for conservation born of fear.

High horns, low horns, silence, and finally a pandemonium of trumpets, rattles, croaks, and cries that almost shakes the bog with its nearness ... A new day has begun on the crane marsh. A sense of time lies thick and heavy on such a place ... Our ability to perceive quality in nature begins, as in art, with the pretty. It expands through successive stages of the beautiful to values as yet uncaptured by language.

Cease being intimidated by the argument that a right action is impossible because it does not yield maximum profits, or that a wrong action is to be condoned because it pays.

There is time not only to see who has done what, but to speculate why.

The first law of intelligent tinkering is to save all the parts

The last word in ignorance is the man who says of an animal or plant: 'What good is it?

There are men charged with the duty of examining the construction of the plants, animals, and soils which are the instruments of the great orchestra. These men are called professors. Each selects one instrument and spends his life taking it apart and describing its strings and sounding boards. This process of dismemberment is called research. The place for dismemberment is called a university.