There's this very vulnerable planet of ours with finite resources. Architects and designers have, I think, a fair responsibility for conserving energy and materials, and making things durable. Robin Day
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
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
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 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 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 still live with this unbelievable threat over our heads of nuclear war. I mean, are we stupid? Do we think that the nuclear threat has gone, that the nuclear destruction of the planet is not imminent? It's a delusion to think it's gone away. Kevin Costner