More quotes by Leonardo da Vinci

"As a well spent day brings happy sleep, so life well used brings happy death."
"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."
"Art is never finished, only abandoned."
"A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light."
"The acquisition of knowledge is always of use to the intellect, because it may thus drive out useless things and retain the good. For nothing can be loved or hated unless it is first known."