Here are a picks of some of his many quotes:
Leonardo; A Man of Action
He who wishes to be rich in a day will be hanged in a year.
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.
Simplicity is the ultimate sophistication.
He who walks straight rarely falls.
Where there is most feeling, there is the greatest martyrdom.
Leonardo; A Man of Experience
Learning never exhausts the mind.
Study without desire spoils the memory, and it retains nothing that it takes in
“Experience, the mother of all Knowledge.”
“Experience does not err; only your judgments err by expecting from her what is not in her power.”
“The organ of perception acts more readily than judgment.”
Leonardo; A Man of Vision
“There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”
“Average human “looks without seeing, listens without hearing, touches without feeling, eats without tasting, moves without physical awareness, inhales without awareness of odour or fragrance, and talks without thinking.”
“Develop your senses- especially learn how to see. Realize that everything connects to everything else.”
Leonardo; The Artist
“The artist sees what others only catch a glimpse of.”
The painter who draws merely by practice and by eye, without any reason, is like a mirror which copies every thing placed in front of it without being conscious of their existence.
“Make your work to be in keeping with your purpose”
Many are they who have a taste and love for drawing, but no talent; and this will be discernible in boys who are not diligent and never finish their drawings with shading.
Leonardo; The Man
“My body will not be a tomb for other creatures.”
“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.”
There will be many men who will move one against another, holding in their hands a cutting tool. But these will not do each other any injury beyond tiring each other; for, when one pushes forward the other will draw back. But woe to him who comes between them! For he will end by being cut in pieces.
. In the nineteenth century up to his death at the Reichenbach Falls on the 4th May 1891, Moriarty was the head of London's underworld with a vast and subtle criminal network extending into Europe. As Holmes describes at the time: 
" and "The Valley of Fear
". However, he is mentioned in five of his other stories, including The Empty House
, The Norwood Builder, The Missing Three-Quarter, The Illustrious Client, and His Last Bow. Moriarty is described as a man of good background and education, with phenomenal mathematical abilities which won him a seat at a university aged just twenty-one. Sherlock Holmes gives us a glimpse into Professor Moriarty's nature during those years when he commented: 
"I was still writing in the Sherlock Holmes 
's fictional French detective 
" (1841), widely considered the first detective fiction story. He reappears in "The Mystery of Marie Rogêt" (1842) and "The Purloined Letter" (1844).Detective fiction, however, had no real precedent and the word detective had not yet been coined when Poe first introduced Dupin.
calculated the year to be 365 days in length, and divided it into 12 months of 30 days each, and 5 festival days thrown in for good measure. 
had only 10 months, starting with March and ending in December (10 or 10th in Latin).
in 45 BC and reformed the Roman calendar. January was introduced as the first month of the year, and was named after the two faced god Janus who's one face looked back on the old year while the other looked forward to the new one. The Julian calendar was eventually replaced by the Gregorian calendar.
but had only 30 days. Not to be outdone, August took a day from Febuary and transported it to his own month; this is why Febuary is the shortest month.
, to correct the 11 minutes lost a year by the Julian calendar. It was not introduced into Protestant England until 170 years later.
was probably born around 5 or 6 BC. The historical and biblical wisdom states that Christ was born in the reign of Herod the Great, a king who was known to have died in 4 BC.
's first year of life was officially named by Pope John as 1 AD. The year in which this happened was AD 532. It was also 754 A.U.C (from the founding of Rome by Romulus and Remus).
