Agree Quote by Christiaan Huygens

In the end we must, I think, somehow conclude that they have as much right to this planet as we have.

— Prince Philip

Personally, I don't think there's intelligent life on other planets. Why should other planets be any different from this one?

— Bob Monkhouse

The rest of the planets have their dress and furniture, nay and their inhabitants too, as well as this Earth of ours.

— Christiaan Huygens

Planets are the big bullies of the planetary system that are, that basically ignore everybody else around them. And everybody else has to deal…

— Mike Brown

Because the planetary culture is becoming ever more closely knitted together all its parts are becoming co-dependent.

— Terence McKenna

I believe that there may be intelligent life on other planets.

— Pat Buckley

I think that an advanced planetary civilization will modify their own planets to be more stable, to prevent asteroid impacts and dangerous climate fluctuations.

— David Grinspoon

No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.

— Carl Sagan

I do hope there are other wonderful planets living and thriving out there, but ours is special because it is ours and ours to…

— Sunita Williams

Any planet is 'Earth' to those that live on it.

— Isaac Asimov

We're living in the anthropocene age and now human beings will be the shapers of our future, that totally control the overall functions of…

— Vandana Shiva

We do care about planets like the Earth because by now we understood that life as a chemical system really needs a smaller planet…

— Dimitar Sasselov