I did learn that it was the greatest thing in the world to respect yourself. Respect other people.
There is no character, howsoever good and fine, but it can be destroyed by ridicule, howsoever poor and witless. Observe the ass, for instance: his character is about perfect, he is the choicest spirit among all the humbler animals, yet see what ridicule has brought him to. Instead of feeling complimented when we are called an ass, we are left in doubt.
Courage is resistance to fear, mastery of fear--not absence of fear. Except a creature be part coward, it is not a compliment to say it is brave; it is merely a loose misapplication of the word. Consider the flea!--incomparably the bravest of all the creatures of God, if ignorance of fear were courage. Whether you are asleep or awake he will attack you, caring nothing for the fact that in bulk and strength you are to him as are the massed armies of the earth to a sucking child; he lives both day and night and all days and nights in the very lap of peril and the immediate presence of death, and yet is no more afraid than is the man who walks the streets of a city that was threatened by an earthquake ten centuries before. When we speak of Clive, Nelson, and Putnam as men who didn't know what fear was, we ought always to add the flea--and put him at the head of the procession.
Aging happy and well, instead of sad and sick, is at least under some personal control. We have considerable control over our weight, our exercise, our education, and our abuse of cigarettes and alcohol. With hard work and/or therapy, our relationships with our spouses and our coping styles can be changed for the better. A successful old age may lie not so much in our stars and genes as in ourselves.