[A]ll knowledge is one. When a light brightens and illuminates a corner of a room, it adds to the general illumination of the entire room. Over and over again, scientific discoveries have provided answers to problems that had no apparent connection with the phenomena that gave rise to the discovery.

Old people think young people haven't learned about love. Young people think old people have forgotten about love.

No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.

Science can amuse and fascinate us all, but it is engineering that changes the world.

Jokes of the proper kind, properly told, can do more to enlighten questions of politics, philosophy, and literature than any number of dull arguments.

I don't subscribe to the thesis, 'Let the buyer beware,' I prefer the disregarded one that goes, 'Let the seller be honest.'

The greatest weapons in the conquest of knowledge are an understanding mind and the inexorable curiosity that drives it on.