If an apple was magnified to the size of the Earth, then the atoms in the apple would be approximately the size of the original apple.

The world is a dynamic mess of jiggling things

We find that the statements of science are not of what is true and what is not true, but statements of what is known with different degrees of certainty: "It is very much more likely that so and so is true than that it is not true".

It's amazing how many people even today use a computer to do something you can do with a pencil and paper in less time.

I have argued flying saucers with lots of people. I was interested in possible. They do not appreciate that the problem is not to demonstrate whether it's possible or not but whether it's going on or not.

It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.

Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.