The moon gravitates towards the earth and by the force of gravity is continually drawn off from a rectilinear motion and retained in its orbit.

The earth is bountiful, and where her bounty fails, nitrogen drawn from the air will refertilize her womb. I developed a process for this purpose in 1900. It was perfected fourteen years later under the stress of war by German chemists.

This most beautiful system of the sun, planets, and comets, could only proceed from the counsel and dominion of an intelligent and powerful Being.

There are dark shadows on the earth, but its lights are stronger in the contrast.

Earth might one day soon resemble the planet Venus.

Fill the earth with your songs of gratitude.

Everything for me is sacred, beginning with earth, but also going to things made by man.

Many readers fail to realize this, but ‚The Color Purple‘ is a theological text. It is about the reclamation of one’s original God: the earth and nature.

Space has always fascinated me. As a young boy looking up at the stars, I found it impossible to resist thinking what was out there and if I ever would experience space first-hand.

If a projectile were deprived of the force of gravity, it would not be deflected toward the earth but would go off in a straight line into the heavens and do so with uniform motion, provided that the resistance of the air were removed.

I got into science fiction by being interested in astronomy first.

To practice five things under all circumstances constitutes perfect virtue; these five are gravity, generosity of soul, sincerity, earnestness, and kindness.

Let’s pray that the human race never escapes from Earth to spread its iniquity elsewhere.

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.

Heaven is under our feet as well as over our heads.

Gravity may put the planets into motion, but without the divine Power, it could never put them into such a circulating motion as they have about the Sun; and therefore, for this as well as other reasons, I am compelled to ascribe the frame of this System to an intelligent Agent.

The bad fortune of the good turns their faces up to heaven; the good fortune of the bad bows their heads down to the earth.

The same thing is to be understood of all bodies, revolved in any orbits. They all endeavour to recede from the centres of their orbits, and were it not for the opposition of a contrary force which restrains them to and detains them in their orbits, which I therefore call Centripetal, would fly off in right lines with a uniform motion.

We can be thankful to a friend for a few acres, or a little money; and yet for the freedom and command of the whole earth, and for the great benefits of our being, our life, health, and reason, we look upon ourselves as under no obligation.

We must accept what science tells us, that man was born from the earth. But, more logical than the scientists who lecture us, we must carry this lesson to its conclusion: that is to say, accept that man was born entirely from the world – not only his flesh and bones but his incredible power of thought.

One thing that I find very unmotivating is the kind of Plan B argument: when Earth gets destroyed, you want to be somewhere else. That doesn’t work for me. We have sent robotic probes now to every place in the solar system, and this is the best one.

You teach your daughters the diameters of the planets and wonder when you are done that they do not delight in your company.

Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.

For me, the real earth is that chosen part of the universe, still almost universally dispersed and in course of gradual segregation, but which is little by little taking on body and form in Christ.

What do I care about Jupiter? Justice is a human issue, and I do not need a god to teach it to me.

The earth belongs to the living, not to the dead.

Life is tragic simply because the earth turns and the sun inexorably rises and sets, and one day, for each of us, the sun will go down for the last, last time.

You are a child of the sun, you come from the sun, and that is something true with the Earth also… your relationship with the Earth is so deep, and the Earth is in you and this is something not very difficult, much less difficult then philosophy.

I create stars.

And forget not that the earth delights to feel your bare feet and the winds long to play with your hair.

Up until the 1920s, everyone thought the universe was essentially static and unchanging in time.

Even Hubble hasn’t found yet the end of this universe, and we don’t know that it has any end.

It is the stars, The stars above us, govern our conditions.

Forget not that the earth delights to feel your bare feet and the winds long to play with your hair.

The motions which the planets now have could not spring from any natural cause alone, but were impressed by an intelligent Agent.

What is the use of a house if you haven’t got a tolerable planet to put it on?

The earth laughs in flowers.

We have lived long enough to experience the hollowness of earth and the rottenness of all carnal promises.

Opinion has caused more trouble on this little earth than plagues or earthquakes.

I can honestly say – and it’s a big surprise to me – that I have never had a dream about being on the moon.

Long before the awakening of thought on earth, manifestations of cosmic energy must have been produced which have no parallel today.

Contention existed before the earth was formed.

Modern science says: ‚The sun is the past, the earth is the present, the moon is the future.‘ From an incandescent mass we have originated, and into a frozen mass we shall turn. Merciless is the law of nature, and rapidly and irresistibly we are drawn to our doom.

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.

It is clear to everyone that astronomy at all events compels the soul to look upwards, and draws it from the things of this world to the other.

All my authority in heaven and on earth has been given to me.

Property is intended to serve life, and no matter how much we surround it with rights and respect, it has no personal being. It is part of the earth man walks on. It is not man.

Service to others is the rent you pay for your room here on earth.

I have explained the phenomena of the heavens and of our sea by the force of gravity, but I have not yet assigned a cause to gravity.

I think life on Earth must be about more than just solving problems… It’s got to be something inspiring, even if it is vicarious.

I thought the attractions of being an astronaut were actually, not so much the Moon, but flying in a completely new medium.

I was born on January 8, 1942, exactly three hundred years after the death of Galileo. I estimate, however, that about two hundred thousand other babies were also born that day. I don’t know whether any of them was later interested in astronomy.

There could be shadow galaxies, shadow stars, and even shadow people.

Atheism is so senseless. When I look at the solar system, I see the earth at the right distance from the sun to receive the proper amounts of heat and light. This did not happen by chance.

Science sent the Hubble telescope out into space, so it could capture light and the absence thereof, from the very beginning of time. And the telescope really did that. So now we know that there was once absolutely nothing, such a perfect nothing that there wasn’t even nothing or once.

Poets say science takes away from the beauty of the stars – mere globs of gas atoms. I, too, can see the stars on a desert night, and feel them. But do I see less or more?

Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the drug store, but that’s just peanuts to space.

If the stars should appear but one night every thousand years how man would marvel and stare.

All the gold which is under or upon the earth is not enough to give in exchange for virtue.

Heaven is long-enduring, and earth continues long. The reason why heaven and earth are able to endure and continue thus long is because they do not live of, or for, themselves.

Just as the system of the sun, planets and comets is put in motion by the forces of gravity, and its parts persist in their motions, so the smaller systems of bodies also seem to be set in motion by other forces and their particles to be variously moved in relation to each other and, especially, by the electric force.