The more I learn of physics, the more I am drawn to metaphysics.

If you want your children to be intelligent, read them fairy tales. If you want them to be more intelligent, read them more fairy tales.

From a certain temperature on, the molecules 'condense' without attractive forces; that is, they accumulate at zero velocity. The theory is pretty, but is there some truth in it.

The significant problems we have cannot be solved at the same level of thinking with which we created them.

The pursuit of knowledge for its own sake, an almost fanatical love of justice and the desire for personal independence -- these are the features of the Jewish tradition which make me thank my stars that I belong to it.

If you have never failed, you have never tried anything new.

artificial intellegance is no match for natural stupidity