"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."
"Life can only be understood backwards but it must be lived forwards."Leonardo da Vinci on Soren Kierkegaard
"The only source of knowledge is experience."Leonardo da Vinci on Albert Einstein
"Experience: that most brutal of teachers. But you learn, my God do you learn."Leonardo da Vinci on C. S. Lewis
"Experience is simply the name we give our mistakes."Leonardo da Vinci on Oscar Wilde
"A man who carries a cat by the tail learns something he can learn in no other way."Leonardo da Vinci on Mark Twain
"Art is never finished, only abandoned."
"Where the spirit does not work with the hand, there is no art."
"The human foot is a masterpiece of engineering and a work of art."
"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."
"He who is fixed to a star does not change his mind."