Perception is one millionth of one percent reality (truth in fact).

Our little Spaceship Earth is only eight thousand miles in diameter, which is almost a negligible dimension in the great vastness of space.

That which is communicated, i.e., understood, is metaphysical. The means of communication is physical.

Our little Spaceship Earth is only eight thousand miles in diameter, which is almost a negligible dimension in the great vastness of space.... Spaceship Earth was so extraordinarily well invented and designed that to our knowledge humans have been on board it for two million years not even knowing that they were on board a ship.

The word generalization in literature usually means covering too much territory too thinly to be persuasive, let alone convincing. In science, however, a generalization means a principle that has been found to hold true in every special case.... The principle of leverage is a scientific generalization.

There will come a time when the proper education of children, by a glorified system of spontaneous education of choice, similar to the Montessori System, will be made possible.

The true business of people should be to go back to school and think about whatever it was they were thinking about before somebody came along and told them they had to earn a living.