Progress isn't made by early risers. It's made by lazy men trying to find easier ways to do something.

Whom the gods would destroy, they first make mad.

At times one remains faithful to a cause only because its opponents do not cease to be insipid.

No one who cannot rejoice in the discovery of his own mistakes deserves to be called a scholar.

Every great advance in natural knowledge has involved the absolute rejection of authority.

Raising children is saving the world one child at a time.

Everything is something you decide to do, and there is nothing you have to do.

Security is mostly a superstition. It does not exist in nature…. Life is either a daring adventure or nothing.

God can only teach us what were prepared to understand. ... He would be anUnloving father if he insisted on telling us only as much as humans could understand back in the infancy of our species.