"The long fight to save wild beauty represents humanity's spiritual resistance to the omnipresent ugliness and vulgarity of a materialistic civilization."

"It is a wholesome and necessary thing for us to turn again to the earth and in the contemplation of her beauties to know the sense of wonder and humility."

"It is a truism that in this world of ours, just as in the world of the ancient Greeks, whom we have taught ourselves to admire, there is a certain fatalism."

"The public must decide whether it wishes to continue on the present road, and it can do so only when in full possession of the facts."

"I am not a prophet. I am a scientist."