One must stand stiller than still. On reverse time travel.

Science should leave off making pronouncements: the river of knowledge has too often turned back on itself.

In this model, the sun is a very tiny speck of dust indeed-a speck less than a three-thousandth of an inch in diameter ... Think of the sun as something less than a speck of dust in a vast city, of the earth as less than a millionth part of such a speck of dust, and we have perhaps as vivid a picture as the mind can really grasp of the relation of our home in space to the rest of the universe.

Life exists in the universe only because the carbon atom possesses certain exceptional properties.

To travel hopefully is better than to arrive.

We may as well cut out group theory. That is a subject that will never be of any use in physics.

The really happy person is the one who can enjoy the scenery, even when they have to take a detour.[make the best of what is necessary...if you can't have what you love, love what you have...as there are lovable or at least positive aspects in everything, because anything could be worse]