Buzz Aldrin Quotes
You need propellants to accelerate toward Mars, then to decelerate at Mars, again to re-accelerate from Mars to Earth, and finally to decelerate back at Earth. Accordingly, the mass of these required propellants, in short, drives our need for innovative launch vehicles.

Quotes to Explore
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We don't need to clear the 4 to 6 percent of the Earth's surface remaining in tropical rain forests, with most of the animal and plant species living there.
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Mountains are earth's undecaying monuments.
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Now Heaven and Earth are older than the temples, and older than the Scriptures.
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Scientists didn't discover the noble gas helium - the second most common element in the universe - on Earth until 1895. And they thought it existed in minute quantities only, until miners found a huge underground cache in Kansas in 1903.
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Since 1980, we've used reconciliation 22 times, and out of those times, Republicans used it 16 times. So, earth to my Republican friends, you can have your option but you cannot change these facts. They're in the Congressional Record.
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If you really want to know what Middle-earth is based on, it's my wonder and delight in the earth as it is, particularly the natural earth.
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Then about 1951 I began writing again, painfully, a novel I called in the beginning A Life Sentence on Earth, but which developed into The Tree of Man.
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There is only one thing keeping us from having heaven on earth: we can't believe it! Why? Because we don't want to be wrong - so we'll be right and make it hell!
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You can't take sides when you know the earth is round.
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The human juggernaut is permanently eroding Earth's ancient biosphere.
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Do what you really want to do. That's why God put you on this earth.
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What allows us, as human beings, to psychologically survive life on earth, with all of its pain, drama, and challenges, is a sense of purpose and meaning.
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In the past, on Earth, it has largely been to exploit foreign resources and to expand the domestic territory.
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The boundary between space and the earth is purely arbitrary. And I'll probably always be interested in this planet - it's my favorite.
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'Planet Earth' was such an extraordinary series and the 'Making Of'... is fascinating: the creatures and stories behind the camera are just as fascinating as those in front. It's a bit of a dream come true to be a part of the team in some small way.
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I wouldn't mind at all coming back to earth after my death.
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The truth is that killing innocent people is always wrong - and no argument or excuse, no matter how deeply believed, can ever make it right. No religion on earth condones the killing of innocent people; no faith tradition tolerates the random killing of our brothers and sisters on this earth.
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We may have charted all the continents on the planet, and we may have discovered all the mammals, but that doesn't mean that there's nothing left to explore on Earth.
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The key of 'The Earth from Above,' and of 'Home' is to show the beauty of the planet, and thereby to promote love for it.
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A big part of life is realizing what you're good at.
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I'm happy, everyone's happy. It's the best goal I've ever scored.
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I enjoy being a girl.
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You need propellants to accelerate toward Mars, then to decelerate at Mars, again to re-accelerate from Mars to Earth, and finally to decelerate back at Earth. Accordingly, the mass of these required propellants, in short, drives our need for innovative launch vehicles.