Robert A. Heinlein vs. Leonardo da Vinci
Read 20 entries attributed to Robert A. Heinlein alongside 20 attributed to Leonardo da Vinci. Compare the wording and topic labels.
This page places 20 entries attributed to Robert A. Heinlein alongside 20 attributed to Leonardo da Vinci. Each selection is ordered by stored importance score. These are selections from QuoteLineage, not complete accounts of either author's work.
Topic labels present in both displayed selections: love, life, philosophy, human nature. Shared labels do not by themselves demonstrate agreement, disagreement, or influence between the authors.
Attributed to Robert A. Heinlein, entry #1008: "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, t…"
Attributed to Leonardo da Vinci, entry #119: "Up Lake Como towards Germany is the Chavenna Valley where the River Mera") enters the lake. Here are barren and very high mountains with large rocks ... In these mountains the wat…"
Side-by-Side Comparison
Robert A. Heinlein
1907 – 1988
Robert Anson Heinlein was an American science fiction author, engineer, and naval officer. Sometimes called the "dean of science fiction writers", he was among the first to emphasize scientific accuracy in his fiction and was thus a pioneer of the subgenre of hard science fiction. His published works, both fiction and non-fiction, express admiration for competence and emphasize the value of critical thinking.
"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…"
#love"Love is that condition in which the happiness of another person is essential to your own."
#happiness"May you live as long as you wish and love as long as you live."
#life"Free will was another matter. It could not be laughed off, because it could be directly experienced—yet his own free will had worked to create the same scene…"
#freedom"I now define "moral behavior" as "behavior that tends toward survival." I won't argue with philosophers or theologians who choose to use the word "moral" to …"
#philosophy"Luck is a bonus that follows careful planning—it’s never free."
#freedom"I really am a good listener because you never can tell when you will pick up something useful—and all in the world any woman has to do to be considered “char…"
#friendship"When you haven’t data, guessing is illogical."
#philosophy"Some people insist that 'mediocre' is better than 'best.' They delight in clipping wings because they themselves can't fly. They despise brains because they …"
#life"Since when did a mathematician need any tools but his own head? Pythagoras had done well enough with a stick and a stretch of sand."
#humor"At fourteen months he began speaking in sentences, short and of his own structure, but sentences. The subjects of his conversation, or, rather, his statement…"
#writing"I've heard all the usual Sweetness and Light that kids get pushed at them—how they should always forgive, how there’s some good in the worst of us, etc. But …"
#leadership"I have never been impressed by the formal schools of ethics. I had sampled them — public libraries are a ready source of recreation for an actor short of cas…"
#family"I trust that I am honest with myself. I know that I am not very sociable and I expect to go on being so; a man capable of creative work has no time to spare …"
#truth"Don, have you been dealing with a booklegger?"
#books"Like many a man before him, he found himself forced into a lie because the truth simply would not be believed."
#truth"Apparently she believes she is safe. Evil is essentially stupid, Joe; despite her brilliance, she believes what she wishes to believe. Or it may be that she …"
#death"Sex is rearing its interesting head."
#leadership"I had taken a partner once before—but, damnation, no matter how many times you get your fingers burned, you have to trust people. Otherwise you are a hermit …"
#wisdom"As for population, every major shortcoming of our native planet could be traced to one cause: too many people, not enough planet."
#Human NatureLeonardo da Vinci
1452 – 1519
Leonardo da Vinci (1452) was an Italian polymath of the Renaissance — painter, scientist, engineer, mathematician, and writer.
"Up Lake Como towards Germany is the Chavenna Valley where the River Mera") enters the lake. Here are barren and very high mountains with large rocks ... In t…"
#Ethics"Su per lago di Como di ver Lamagnia (Alemagna, cioè Germania) è valle di Ciavenna dove la Mera fiume mette in esso lago. Qui si truova montagni sterili e alt…"
#Science"Oysters open completely when the moon is full; and when the crab sees one it throws a piece of stone or seaweed into it and the oyster cannot close again so …"
#Science"Painting is poetry which is seen and not heard, and poetry is a painting which is heard but not seen. These two arts, you may call them both either poetry or…"
#Aesthetics"3 miglia più in là si trova li edifici della vena del rame e dello argento, presso una terra detta Pra Santo Petro e vene di ferro e cose fantastiche. ( Anci…"
#Science"The painter strives and competes with nature...There is nothing in all nature without its reason. If you know the reason, you do not need the experience..."
#Epistemology"3 miles further on are the buildings of the vein of copper and silver, near a land called Prato San Pietro and veins of iron and fantastic things. (paper F.573)"
#Science"Fa vini potenti e assai, … e ‘l vino vale el più uno soldo il boccale e la libbra della vitella un soldo e ‘l sale 10 dinari, e ‘l simile il burro, ed è la l…"
#Science"As a day well spent makes sleep seem pleasant, so a life well employed makes death pleasant. A life well spent is long."
#Human Nature"truovasi di miglio i(n) miglio bone osteriee. ( Ancient Italian)"
#Science"Look at the grace and sweetness of men and women in the street..."
#Science"Thou, O God, sellest us all benefits, at the cost of our toil...."
#Religion"He makes powerful and very strong wines, … and the wine is worth more than a penny per jug and the pound of veal a penny and the salt 10 denarii, and so is t…"
#Science"All the elements will be seen mixed together in a great whirling mass, now borne towards the centre of the world, now towards the sky; and now furiously rush…"
#life"Seeing that I can find no subject specially useful or pleasing — since the men who have come before me have taken for their own every useful or necessary the…"
#philosophy"Threats alone are the weapons of the threatened man."
#war"To enjoy—to love a thing for its own sake and for no other reason."
#love"The part always has a tendency to reunite with its whole in order to escape from its imperfection."
#art"Just as courage imperils life, fear protects it."
#life"Oh! human stupidity, do you not perceive that, though you have been with yourself all your life, you are not yet aware of the thing you possess most of, that…"
#knowledge