Italian Renaissance Polymath, Painter, Sculptor, Inventor, Architect, Musician, Scientist, Mathematician, Engineer, Anatomist, Geologist, Cartographer, Botanist and Writer
"Among the great things which are to be found among us, the Being of Nothingness is the greatest."
"Just as eating against one's will is injurious to health, so study without a liking for it spoils the memory, and it retains nothing it takes in."
"Iron rusts from disuse; water loses its purity from stagnation and in cold weather becomes frozen; even so does inaction sap the vigors of the mind."
"Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen."
"What beauty enters through the eye!... Through the window of the eye the soul regards the world's beauty. For the eye endureth the soul the prison of human form. Without the eye that prison were its torment."
"The painter who draws by practice and judgment of the eye without the use of reason is like the mirror which reproduces within itself all the objects which are set opposite it without knowledge of the same."
"The time will come when men… will look on the murder of animals as the now look on the murder of men."
"The painter will produce pictures of little merit if he takes the works of others as his standard."
"Human subtlety--will never devise an invention more beautiful, more simple or more direct than does Nature, because in her inventions nothing is lacking, and nothing is superfluous."
"The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life, for only then do they have to fall back on their reserves."
"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."
"Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason."
"As every divided kingdom falls, so every mind divided between many studies confounds and saps itself."
"Experience does not err. Only your judgments err by expecting from her what is not in her power."
"I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do."
"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."
"I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death."
"Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works. If it works big, others quickly copy it. Then you do something else. The trick is the doing something else."