Figure out for yourself what you want to be really good at, know that you'll never really satisfy yourself that you've made it, and accept that that's okay.
Robert A. HeinleinPhysicians had gone to their graves calling Pasteur a liar, a fool, or worseโwithout examining evidence which their โcommon senseโ told them was impossible.
Robert A. HeinleinWar is not violence and killing, pure and simple; war is controlled violence, for a purpose. The purpose of war is to support your government's decisions by force. The purpose is never to kill the enemy just to be killing him but to make him do what you want him to do. Not killing... but controlled and purposeful violence.
Robert A. HeinleinThe ethics of sex is a thorny problem. Each of us is forced to grope for a solution he can live with - in the face of preposterous, unworkable, and evil code of so-called 'Morals.' Most of us know the code is wrong, almost everybody breaks it. But we pay Danegeld by feeling guilty and giving lip service. Willy-nilly, the code rides us, dead and stinking, an albatross around the neck.
Robert A. HeinleinThe faith in which I was brought up assured me that I was better than other people; I was saved, they were damned.... Our hymns were loaded with arrogance - self-congratulation on how cozy we were with the Almighty and what a high opinion he had of us, what hell everybody else would catch come Judgment Day.
Robert A. Heinlein