Emanuil Albert

“She taught me to love by loving me, and I learned—rather slowly; I wasn’t too good a pupil, being set in my ways and lacking her natural talent. But I did learn. Learned that supreme happiness lies in wanting to keep another person safe and warm and happy, and being privileged to try.”
― Robert A. Heinlein, Time Enough for Love

“If the universe has any purpose more important than topping a woman you love and making a baby with her hearty help, I've never heard of it.”
― Robert A. Heinlein, Time Enough for Love

“I’ve been broke even oftener than I’ve been wealthy. Of the two, being broke is more interesting, as a man who doesn’t know where his next meal is coming from is never bored. He may be angry or several other things—but not bored. His predicament sharpens his thoughts, spurs him into action, adds zest to his life, whether he knows it or not.”
― Robert A. Heinlein, Time Enough for Love

“Do not confuse "duty" with what other people expect of you; they are utterly different. Duty is a debt you owe to yourself to fulfill obligations you have assumed voluntarily. Paying that debt can entail anything from years of patient work to instant willingness to die. Difficult it may be, but the reward is self-respect.
But there is no reward at all for doing what other people expect of you, and to do so is not merely difficult, but impossible.”
― Robert A. Heinlein, Time Enough for Love