You still could go to some industry or some university or the government and if you could persuade them you had something on the ball—why, then, they might put up the cash after cutting themselves in on just about all of the profits. And, naturally, they'd run the show because it was their money and all you had done was the sweating and the bleeding.

Much of what we see in the universe ... starts out as imaginary. Often you must imagine something before you can come to terms with it.

Time is still the great mystery to us. It is no more than a concept; we don't know if it even exists.

Could that have been what happened to the human race - a willing perversity that set at naught all human values which had been so hardly won and structured in the light of reason for a span of more than a million years?

Before Man goes to the stars he should learn how to live on Earth .

When I talk of the purpose of life, I am thinking not only of human life, but of all life on Earth and of the life which must exist upon other planets throughout the universe.

And time itself? Time was a never-ending medium that stretched into the future and the past - except there was no future and no past, but an infinite number of brackets, extending either way, each bracket enclosing its single phase of the Universe.