Quote by David Brower
"Gratitude for the natural world should be expressed through action, not words alone."
More from David Brower
"In every conceivable manner, the family is link to our past, bridge to our future, and bonds to each other."
"The gross national product does not allow for the health of our children, the quality of their education or the joy of their play."
"A true conservationist is a user, not a preservationist."
"The earth we abuse and the living things we kill will, in the end, take their revenge; for in exploiting their presence we are diminishing our future."