Famous Quotes

"Population, when unchecked, goes on doubling itself every 25 years or increases in a geometrical ratio."

Thomas Malthus on Environmental

More quotes about Environmental

• "The environment is everything that isn't me."

  Albert Einstein on Environmental

• "Never doubt that a small group of thoughtful, committed citizens can change the world indeed, it's the only thing that ever has."

  Margaret Mead on Environmental

• "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."

  John Muir on Environmental

• "Thank God men cannot fly, and lay waste the sky as well as the earth."

  Henry David Thoreau on Environmental

• "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."

  John Muir on Environmental

More quotes by Thomas Malthus

• "In a state therefore of great equality and virtue, where pure and simple manners prevailed, the increase of the human species would evidently be much greater than any increase that has been hitherto known."

• "I do not know that any writer has supposed that on this earth man will ultimately be able to live without food."

• "I think it will be found that experience, the true source and foundation of all knowledge, invariably confirms its truth."

• "The superior power of population cannot be checked without producing misery or vice."