A theory with mathematical beauty is more likely to be correct than an ugly one that fits some experimental data.

I should like to suggest to you that the cause of all the economic troubles is that we have an economic system which tries to maintain an equality of value between two things, which it would be better to recognise from the beginning as of unequal value.

If we are honest - and scientists have to be - we must admit that religion is a jumble of false assertions, with no basis in reality.

Scientific progress is measured in units of courage, not intelligence.

There is in my opinion a great similarity between the problems provided by the mysterious behavior of the atom and those provided by the present economic paradoxes confronting the world.

The measure of greatness in a scientific idea is the extent to which it stimulates thought and opens up new lines of research.

As time goes on, it becomes increasingly evident that the rules which the mathematician finds interesting are the same as those which Nature has chosen.