There is no joy equal to that of being able to work for all humanity and doing what you're doing well.

The one common experience of all humanity is the challenge of problems.

We are prisoners of our own metaphors, metaphorically speaking.

"The further art advances the closer it approaches science," said Leonardo da Vinci, painter, sculptor, architect, engineer, and inventor of the wheelbarrow, and other useful instruments from the speaking tube to a mechanically gyp-proof whore-house, "the further science advances the closer it approaches art."

It is the integrity of each individual human that is in final examination. On personal integrity hangs humanity's fate.

You cannot change how someone thinks, but you can give them a tool to use which will lead them to think differently.

The World has become too dangerous for anything less than Utopia.