Leonardo di ser Piero da Vinci (1452 – 1519), more commonly Leonardo da Vinci, was an Italian Renaissance polymath.

1215. What is fair in men, passes away, but not so in art

1216. A well-spent day brings happy sleep.

1217. A wave is never found alone, but is mingled with the other waves.

1218. It is an acknowledged fact that we perceive errors in the work of others more readily than in our own.

1219. Just as a well-filled day brings blessed sleep, so a well-employed life brings a blessed death.

1220. The supreme misfortune is when theory outstrips performance.

1221. The water you touch in a river is the last of that which has passed, and the first of that which is coming. Thus it is with time present. Life, if well spent, is long.

1222. If there's no love, what then?

1058. As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.

1059. Man has much power of discourse which for the most part is vain and false; animals have but little, but it is useful and true, and a small truth is better than a great lie.

1060. If you find from your own experience that something is a fact and it contradicts what some authority has written down, then you must abandon the authority and base your reasoning on your own findings.

1061. Truly man is the king of beasts, for his brutality exceeds them. We live by the death of others. We are burial places.

1062. He who truly knows has no occasion to shout.

1063. We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.

660. Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.

661. I love those who can smile in trouble...

662. Art is never finished, only abandoned.

663. The deeper the feeling, the greater the pain.

664. It is easier to resist at the beginning than at the end.

665. As you cannot do what you want, Want what you can do.

666. I thought I was learning to live; I was only learning to die.

667. The time will come when men such as I will look upon the murder of animals as they now look on the murder of men.

668. Water is the driving force in nature.

669. Details make perfection, and perfection is not a detail.

435. Tears come from the heart and not from the brain.

436. Why does the eye see a thing more clearly in dreams than the imagination when awake?”

437. The human foot is a masterpiece of engineering and a work of art.

438. There are three classes of people: those who see, those who see when they are shown, those who do not see.

439. Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.

440. He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.

441. I have offended God and mankind because my work didn't reach the quality it should have.

264. It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.

265. The greatest deception men suffer is from their own opinions.

266. Simplicity is the ultimate sophistication.

267.:Learning never exhausts the mind.

268. Where the spirit does not work with the hand, there is no art.

269. Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.

270. The natural desire of good men is knowledge.

271. Science is the captain, and practice the soldiers.

272. It is better to imitate ancient than modern work.