There are two ways of forming an opinion. One is the scientific method; the other, the scholastic. To the scientific mind, experimental proof is all-important, and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything, and facts are junked when they do not fit theory.
Robert A. HeinleinThere is an old song which asserts 'the best things in life are free.' Not true! Utterly false! This was the tragic fallacy which brought on the decadence and collapse of the democracies of the twentieth century; those noble experiments failed because the people had been led to believe that they could simply vote for whatever they wanted...and get it without toil, without sweat, without tears. Nothing of value is free. Even the breath of life is purchased at birth only through gasping effort and pain.
Robert A. HeinleinThere is no conclusive evidence of life after death, but there is no evidence of any sort against it. Soon enough you will know, so why fret about it?
Robert A. HeinleinThere are hidden contradictions in the minds of people who "love Nature" while deploring the "artificialities" with which "Man has spoiled Nature.'" The obvious contradiction lies in their choice of words, which imply that Man and his artifacts are not part of "Nature" : but beavers and their dams are.
Robert A. Heinlein