Wisdom is the daughter of experience
Oh Lord thou givest us everything at the price of an effort.
Painting is concerned with all the 10 attributes of sight; which are: Darkness and Light, Solidity and Color, Form and Position, Distance and Propinquity, Motion and Rest.
What is fair in men, passes away, but not so in art
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.
He who wishes to be rich within a day, will be hanged within a year.
In rivers, the water that you touch is the last of what has passed and the first of that which comes so with present time.
As a well-spent day brings happy sleep, so a life well spent brings happy death.
All knowledge which ends in words will die as quickly as it came to life, with the exception of the written word: which is its mechanical part.
Learning never exhausts the mind.
As iron rusts when not used, and water gets foul from standing or turns to ice when exposed to cold, so the intellect degenerates without exercise.-Leonard Da Vinci
A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.
Beyond a doubt truth bears the same relation to falsehood as light to darkness.
The greatest deception men suffer is from their own opinions.
There are three classes of people: those who see, those who see when they are shown, those who do not see.
The painter will produce pictures of little merit if he takes the works of others as his standard.
Experience does not err. Only your judgments err by expecting from her what is not in her power.
Make your work to be in keeping with your purpose
Men of lofty genius when they are doing the least work are most active.
Man and animals are in reality vehicles and conduits of food, tombs of animals, hostels of Death, coverings that consume, deriving life by the death of others.