Robert A. Heinlein

Live and learn, or you don’t live long.

Robert A. Heinlein

Love is the condition in which the happiness of another person is essential to your own.

Robert A. Heinlein

Man has no moral instinct. He is not born with moral sense. You were not born with it, I was not – and a puppy has none. We acquire moral sense, when we do, through training, experience, and hard sweat of the mind.

Robert A. Heinlein

Money is a powerful aphrodisiac but flowers work almost as well.

Robert A. Heinlein

Most people can’t think, most of the remainder won’t think, and the small fraction who do think mostly can’t do it very well.

Robert A. Heinlein

Never underestimate the power of human stupidity.

Robert A. Heinlein

One can lead a child to knowledge but one cannot make him think.

Robert A. Heinlein

People usually believe anything that they are told early and often.

Robert A. Heinlein

Take big bites. Anything worth doing is worth overdoing.

Robert A. Heinlein

The more you love, the more you can love – and the more intensely you love.

Robert A. Heinlein