Wealth is the product of energy times intelligence: energy turned into artifacts that advantage human life.

Rashness is the faithful, but unhappy parent of misfortune.

All of humanity now has the option to "make it" successfully and sustainably, by virtue of our having minds, discovering principles and being able to employ these principles to do more with less.

There are over 2 million cars standing in front of red lights with their engines going. Then we have over 2 million times approximately 100 horsepower being generated as they are idling there, so that we have something like 200 million horses jumping up and down and going nowhere. Now, we have to count that in our economy when we begin to get down to what is the efficiency of the economy.

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.

Television is the third parent.

Man knows so much and does so little.