We have been troubled about the world, and had almost lost faith in man; it helps to think about the long history of the earth, and of how life came to be. And when we think in terms of millions of years, we are not so impatient that our own problems be solved tomorrow.
Speech accepting the John Burroughs Medal (April 1952); also in Lost Woods: The Discovered Writing of Rachel Carson (1999) edited by Linda Lear, p. 96