"The motions of men must be such..." - Quote by Leonardo Da Vinci

“An arch consists of two weaknesses which, leaning one against the other, make a strength.”

“Art is the queen of all sciences communicating knowledge to all the generations of the world.”

“We may call painting the grandchild of nature.”

“Something is wanting to science until it has been humanised.”

“As the pleasures of the body are the ones which we most often meet with, and as all men are capable of these, these have usurped the family title; and some men think these are the only pleasures that exist, because they are the only ones which they know.”

“Life is rather above the measure of us all (save for a very few perhaps). We all need literature that is above our measure--though we may not have sufficient energy for it all the time.”

“The higher our position the more modestly we should behave.”

“There are follies as catching as contagious disorders.”

“I am called a dog because I fawn on those who give me anything, I yelp at those who refuse, and I set my teeth in rascals.”