Robert A. Heinlein Sayings and Quotes

Below you will find our collection of inspirational, wise, and humorous old Robert A. Heinlein quotes, Robert A. Heinlein sayings, and Robert A. Heinlein proverbs, collected over the years from a variety of sources.

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. Robert A. Heinlein
Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy - in fact, they are almost incompatible; one emotion hardly leaves room for the other. Robert A. Heinlein
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. Robert A. Heinlein
I never learned from a man who agreed with me. Robert A. Heinlein
I know why we laugh. We laugh because it hurts, and it's the only thing to make it stop hurting. Robert A. Heinlein
Hate always sells well, but for repeat trade and the long pull happiness is sounder merchandise. Robert A. Heinlein
A generation which ignores history has no past - and no future. Robert A. Heinlein
They didn't want it good, they wanted it Wednesday. Robert A. Heinlein
Being a mother is an attitude, not a biological relation. Robert A. Heinlein
Never insult anyone by accident. Robert A. Heinlein
Always listen to experts. They'll tell you what can't be done, and why. Then do it. Robert A. Heinlein
Progress doesn't come from early risers - progress is made by lazy men looking for easier ways to do things. Robert A. Heinlein
Always listen to experts. They'll tell you what can't be done and why. Then do it. Robert A. Heinlein
You're in bad shape when your emotions force you into acts which you know are foolish. Robert A. Heinlein
Woman and cats will do as they please, and men and dogs should relax and get used to the idea. Robert A. Heinlein
Everything is theoretically impossible, until it is done. Robert A. Heinlein
Life is short, but the years are long. Robert A. Heinlein
I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do. Robert A. Heinlein
The supreme irony of life is that hardly anyone gets out of it alive. Robert A. Heinlein
Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy - in fact, they are almost incompatible; one emotion hardly leaves room for the other. Robert A. Heinlein
You can have peace. Or you can have freedom. Don't ever count on having both at once. Robert A. Heinlein
Sex without love is merely healthy exercise. Robert A. Heinlein
Being a mother is an attitude, not a biological relation. Robert A. Heinlein
Love is that condition in which the happiness of another person is essential to your own. Robert A. Heinlein
The earth is simply too small and fragile a basket for the human race to keep all its eggs in. Robert A. Heinlein
Love is that condition in which the happiness of another person is essential to your own. Robert A. Heinlein
May you live as long as you wish and love as long as you live. Robert A. Heinlein
Delusions are often functional. A mother's opinions about her children's beauty, intelligence, goodness, et cetera ad nauseam, keep her from drowning them at birth. Robert A. Heinlein
Formal courtesy between husband and wife is even more important than it is between strangers. Robert A. Heinlein
Being a mother is an attitude, not a biological relation. Robert A. Heinlein