Sex, whatever else it is, is an athletic skill. The more you practice, the more you can, the more you want to, the more you enjoy it, the less it tires you.
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. HeinleinCast me into a dungeon, burn me at the stake, crown me king of kings, I can 'pursue happiness' as long as my brain lives - but neither gods nor saints, wise men nor subtle drugs, can ensure that I will catch it.
Robert A. Heinlein