The only limitations are those which we impose upon ourselves.

Lack of education turns soldiers into killing machines.

I was asked once,'your a smart man,why arnt you rich?I replied 'your a rich man,why arnt you smart?

If orange trees grew all over the country, you couldn't sell oranges. Do you understand that? So, all our decision making is based upon scarcity or the availability of resources. If we have a shortage of any kind of resource, we put all the labs to work on making substitute materials. People always worry about 'What if we run out of a certain material?', but we have enough technology today to make thousands of different substitutes.

Today we have access to highly advanced technologies. But our social and economic system has not kept up with our technological capabilities that could easily create a world of abundance, free of servitude and debt.

Working with drug addicts, alcoholics, and so-called juvenile delinquents in New York City convinced me that instead of working with individuals, more effective methods would deal with the societal conditions that create dysfunctional behaviors in the first place.

Man, in the collective sense, is the hero of science. Man, in the collective sense, is the hero of Earth.