To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by right to hand down to them amplified and developed.
Theodore Roosevelt (1858-1919) American politician, statesman, conservationist, writer, US President (1901-1909)
State of the Union Address (3 Dec 1907)
Full text.