More quotes by Leonardo da Vinci

"Our life is made by the death of others."
"All our knowledge has its origin in our perceptions"
"Study without desire spoils the memory, and it retains nothing that it takes in."
"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."
"Where the spirit does not work with the hand, there is no art."