Avoid making irrevocable decisions while tired or hungry.
A family reunion is an effective form of birth control.
Most people who sneer at technology would starve to death if the engineering infrastructure were removed.
Minimize your therbligs until it becomes automatic; this doubles your effective lifetime - and thereby gives time to enjoy butterflies and kittens and rainbows.
Each man is his own prisoner, in solitary confinement for life.
When any government, or any church for that matter, undertakes to say to its subjects, This you may not read, this you must not see, this you are forbidden to know, the end result is tyranny and oppression no matter how holy the motives.