Leonardo da Vinci

"Learning never exhausts the mind."

"Simplicity is the ultimate sophistication."

"The observer sees what he observes."

"Art is the queen of all sciences."

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

"Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works."

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

"Nothing strengthens authority so much as silence."

"Knowing is not enough, we must apply."

"It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them."

"While I thought that I was learning how to live, I have been learning how to die."

"Intellectual passion drives out sensuality."

"The noblest pleasure is the joy of understanding."

"He who loves practice without theory is like a sailor who steers without rudder or compass."

"Nature is the supreme teacher."

"Courage is the path to freedom."

"Even the knowledge of my own fallibility cannot keep me from making mistakes."

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

"I have been impressed with the urgency of doing."

"Delay is the deadliest form of denial."

"The eye which truly sees is the eye which contemplates beauty."

"Everything comes to those who wait."

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

"Whoever despises the high wisdom of nature is going to love himself."

"Small rooms or dwellings set the mind in the right path."

"The supreme misfortune is when theory outpaces performance."

"Painting is poetry that is seen rather than felt."

"Water is the best natural remedy."

"Men of high caliber are much more easy to talk to and of simpler in much of their living."

"One can have no smaller or greater mastery than mastery of oneself."