You have to learn the rules of the game. And then you have to play better than anyone else.

When the solution is simple, God is answering.

Weakness of attitude becomes weakness of character.

True religion is real living; living with all one’s soul, with all one’s goodness and righteousness.

Things should be made as simple as possible, but not any simpler.

There are two ways to live: you can live as if nothing is a miracle; you can live as if everything is a miracle.

The whole of science is nothing more than a refinement of everyday thinking.

The value of a man should be seen in what he gives and not in what he is able to receive.

The true sign of intelligence is not knowledge but imagination.

The process of scientific discovery is, in effect, a continual flight from wonder.

The only source of knowledge is experience.

The only reason for time is so that everything doesn’t happen at once.

The man of science is a poor philosopher.

The faster you go, the shorter you are.

The distinction between the past, present and future is only a stubbornly persistent illusion.

The difference between stupidity and genius is that genius has its limits.

The attempt to combine wisdom and power has only rarely been successful and then only for a short while.

Sometimes one pays most for the things one gets for nothing.

Science is a wonderful thing if one does not have to earn one’s living at it.

Only a life lived for others is a life worthwhile.

Once we accept our limits, we go beyond them.

Memory is deceptive because it is colored by today’s events.

Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

It’s not that I’m so smart, it’s just that I stay with problems longer.

Imagination is everything. It is the preview of life’s coming attractions.