The motion of the stars over our heads is as much an illusion as that of the cows, trees and churches that flash past the windows of our train.

...to many it is not knowledge but the quest for knowledge that gives greater interest to thought-to travel hopefully is better than to arrive.

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

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

All discussion of the ultimate nature of things must necessarily be barren unless we have some extraneous standards against which to compare them.

Kant, discussing the various modes of perception by which the human mind apprehends nature, concluded that it is specially prone to see nature through mathematical spectacles. Just as a man wearing blue spectacles would see only a blue world, so Kant thought that, with our mental bias, we tend to see only a mathematical world.

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.