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

Nature does have manure and she does have roots as well as blossoms, and you can't hate the manure and blame the roots for not being blossoms.

Human beings were given a left foot and a right foot to make a mistake first to the left, then to the right, left again and repeat.

Truth is the progressive diminution of residual error.

Out of my general world-pattern-trend studies there now comes strong evidence that nothing is going to be quite so surprising and abrupt in the future history of man as the forward evolution in the educational process.

For at least 2,000,000 years men have been reproducing and multiplying on a little automated spaceship called earth.

Whether humanity is to comprehensively prosper...depends entirely on the integrity of the human individuals and not on the political and economic systems. The cosmic question has been asked: are humans worthwhile to universe invention?