"Thank God men cannot fly, and lay waste the sky as well as the earth."
"The environment is everything that isn't me."Henry David Thoreau on Albert Einstein
"Never doubt that a small group of thoughtful, committed citizens can change the world indeed, it's the only thing that ever has."Henry David Thoreau on Margaret Mead
"Keep close to Nature's heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean."Henry David Thoreau on John Muir
"God has cared for these trees, saved them from drought, disease, avalanches, and a thousand tempests and floods. But he cannot save them from fools."Henry David Thoreau on John Muir
"When we try to pick out anything by itself, we find it hitched to everything else in the universe."Henry David Thoreau on John Muir
"None are so old as those who have outlived enthusiasm."
"I love to be alone. I never found the companion that was so companionable as solitude."
"I have never found a companion that was so companionable as solitude. We are for the most part more lonely when we go abroad among men than when we stay in our chambers. A man thinking or working is always alone, let him be where he will."
"A man is rich in proportion to the number of things he can afford to let alone."
"The man who goes alone can start today but he who travels with another must wait till that other is ready."