This planet Earth, the act of putting a roof over our heads, our flesh and blood existence, it's all very temporary.
Melissa Auf der Maur

This planet is 15 million years overdue for an asteroid strike like the one that killed the dinosaurs.
L. Neil Smith

This planet seems to be in such sorry shape. And I can't ever think about the rest of the universe without coming back home and thinking what the implications for life here would be if we were to really have some definitive proof of extraterrestrial life.
Ann Druyan

This war in Iraq is part of a larger effort to remove this terrorist threat from the planet.
Paul Cellucci

Through all of history mankind has ingested psychedelic substances. Those substances exist to put you in touch with spirits beyond yourself, with the creator, with the creative impulse of the planet.
Ray Manzarek

Two hundred or more years ago most people on the planet were never aware of any reality other than the one into which they were brought up.
Chaim Potok

Unfortunately, we haven't found many very old rocks on Earth because our planet's surface is constantly renewed by plate tectonics, coupled with erosion.
Robert Duncan

Unless we keep this planet healthy, everything else is for naught.
Victoria Principal

War is idiocy. We live on a small, small planet, and what we do to others is what we do to ourselves.
Rosanne Cash

We all live on the same planet, it is our only home, so... we used to rotate crops back in the day and, you know, who cares if you're going to make a profit if everybody's too dead or glowing in the dark to be able to purchase anything.
Michael Berryman

We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
Stephen Hawking

We are so arrogant, we forget that we are not the reason for evolution, we are not the point of evolution. We are part of evolution. Unfortunately, we believe that we've been created to dominate the planet, to dominate nature. Ain't true.
Ted Danson

We are the only beings on the planet who lead such rich internal lives that it's not the events that matter most to us, but rather, it's how we interpret those events that will determine how we think about ourselves and how we will act in the future.
Tony Robbins

We both can be the most beautiful and benevolent creatures on the planet, but then there's another side that can be as harsh and as ugly as the darkest thing you could imagine seeing.
Terrence Howard

We must act swiftly in order to halt the rate of decay our planet faces.
Henry W. Kendall

We must strive to encourage East and West not only to move towards each other but also to encourage them to find a new philosophy, a philosophy which will serve as a tool determining the future of Planet Earth - our common and only shelter.
Nursultan Nazarbayev

We need to continue to decrease the growth rate of the global population; the planet can't support many more people.
Nina Fedoroff

We need to think of the future and the planet we are going to leave to our children and their children.
Kofi Annan

We owe at least this much to future generations, from whom we have borrowed a fragile planet called Earth.
Maurice Strong

We owe it to each other - and to our children and grandchildren - to leave our planet in a better state than when we found it.
Christopher Dodd