That which has been believed by everyone, always and everywhere, has every chance of being false.

Everything that is simple is theoratically false, everything that is complicated is pragmatically useless.

History is the science of things which are not repeated.

In poetry everything which must be said is almost impossible to say well.

Science means simply the aggregate of all the recipes that are always successful. All the rest is literature.

The universe is built on a plan the profound symmetry of which is somehow present in the inner structure of our intellect.