We stand guard over works of art, but species representing the work of aeons are stolen from under our noses

It is part of wisdom never to revisit a wilderness, for the more golden the lily, the more certain that someone has gilded it

Agricultural science is largely a race between the emergence of new pests and the emergence of new techniques for their control.

No matter how intently one studies the hundred little dramas of the woods and meadows, one can never learn all the salient facts about any one of them.

Ability to see the cultural value of wilderness boils down, in the last analysis, to a question of intellectual humility. The shallow-minded modern who has lost his rootage in the land assumes that he has already discovered what is important.

To those devoid of imagination a blank place on the map is a useless waste; to others, the most valuable part.

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