Harmony with land is like harmony with a friend; you cannot cherish his right hand and chop off his left. That is to say, you cannot love game and hate predators; you cannot conserve the waters and waste the ranges; you cannot build the forest and mine the farm. The land is one organism.

We abuse land because we regard it as a commodity belonging to us.

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.

Like winds and sunsets, wild things were taken for granted until progress began to do away with them. Now we face the question whether a still higher 'standard of living' is worth its cost in things natural, wild and free. For us of the minority, the opportunity to see geese is more important than television.

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

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

A thing is right when it tends to preserve the integrity, stability and beauty of the biotic community. It is wrong when it tends otherwise.