- Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has - Margaret Mead
- Obstacles are those frightful things you see when you take your eyes off the goal – Henry Ford
- Strength does not come from physical capacity. It comes from an indomitable will – Mahatma Gandhi
- You must be the change you want to see in the world – Mahatma Gandhi
- Don't go around saying the world owes you a living. The world owes you nothing. It was here first – Mark Twain
- I had no right whatsoever to destroy what I could not create. The air we breathe and the water we drink stem from the biodiversity of the universal environment and its economics. The tiger is at the centre of this truth. If it goes, we go – Billy Arjan Singh
- You encroached on my food and space, and for my instincts blame my race... I am trapped. I can not choose. My instinct I can not refuse, but you! What is your excuse? – Dr. Divya Chhabra
- There is nothing in which the birds differ more from man than the way in which they can build and yet leave a landscape as it was before – Robert Lynd
- Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect. – Chief Seattle, 1855
- The problem is the way we are thinking. The problem is fundamentally a cultural problem. It's at the level of our culture that this illness is happening – Thom Hartmann
- One can see from space how the human race has changed the Earth. Nearly all of the available land has been cleared of forest and is now used for agriculture or urban development. The polar icecaps are shrinking and the desert areas are increasing. At night, the Earth is no longer dark, but large areas are lit up. All of this is evidence that human exploitation of the planet is reaching a critical limit. But human demands and expectations are ever-increasing. We cannot continue to pollute the atmosphere, poison the ocean and exhaust the land. There isn't any more available – Stephen Hawking
- But even to think that we are separated from Nature is somehow a thinking disorder. You cannot be separated from Nature. Why we think that way is the interesting thing – James Hillman
- The activist is not the man who says the river is dirty. The activist is the man who cleans up the river – Ross Perot
- Whatever you do will be insignificant, but it is very important that you do it – M K Gandhi
- All over the world the wildlife that I write about is in grave danger. It is being exterminated by what we call the progress of civilization - Gerald Durrell
- Humanity, in the desperate attempt to fit 8 billion or more people on the planet and give them a higher standard of living, is at risk of pushing the rest of life off the globe – E. O. Wilson
- In the end, we will conserve only what we love, we will love only what we understand, and we will understand only what we are taught – Baba Dioum
- Our choices at all levels—individual, community, corporate and government—affect nature. And they affect us – David Suzuki
- We do not inherit the earth from our ancestors; we borrow it from our children – Chief Seattle
- Only when the last tree has been cut down,
Only when the last river has been poisoned,
Only when the last fish has been caught,
Only then will you find that money cannot be eaten – Cree Indian Prophecy
- 23. Obviously humans are evolution’s greatest mistake. To atone in a small way, we need to help maintain all the diversity we can. Who are we to judge what is expendable? - George Schaller
- The journey of a thousand miles, begins with a single step – Lao Tzu
- A society is defined not only by what it creates, but by what it refuses to destroy a– John Sawhill
