We do not need to plan or devise a "world of the future"; if we take care of the world of the present, the future will have received full justice from us. a good future is implicit in the soils, forests, grasslands, marshes, deserts, mountains, rivers, lakes, and oceans that we have now, and in the good things of human culture that we have now; the only valid "futurology" available to us is to take care of those things. we have no need to contrive and dabble at "the future of the human race"; we have the same pressing need that we have always had - to love, care for, and teach our children.

o ask a still more obvious question, what is the purpose of this technological progress?  What higher aim do we think it is serving?  Surly the aim cannot be the integrity or happiness of our families, which we have made subordinate to the education system, the television industry, and the consumer economy.  Surely it cannot be the integrity of health of out communities, which we esteem even less than we esteem our families.  Surly it cannot be love of our country, for we are far more concerned about the desecration of the flag than we are about the desecration of our land.  Surly it cannot be the love of God, which counts for at least as little in the daily order of business as the love of family, community, and country.

S^2 = a4^2 = a4 * 4 = a16 centimeters = area of the square