Leonardo da Vinci

“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.”

“The greatest deception men suffer is from their own opinions.”

“Nature never breaks her own laws.”

“Nothing strengthens authority as much as silence.”

“A well-spent day brings happy sleep.”

“The truth of things is the chief nutriment of superior intellects.”

“Learning never exhausts the mind.”

“In rivers, the water that you touch is the last of what has passed and the first of that which comes so with present time.”

“Art is never finished, only abandoned.”

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

“Just as courage imperils life, fear protects it.”

“As a well-spent day brings happy sleep, so a life well spent brings happy death.”

“Experience does not err. Only your judgments err by expecting from her what is not in her power.”

“Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.”

“Anyone who conducts an argument by appealing to authority is not using his intelligence he is just using his memory.”

“All our knowledge has its origins in our perceptions.”

“Where there is shouting, there is no true knowledge.”

“Life well spent is long.”

“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.”

“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.”

“Time stays long enough for anyone who will use it.”

“Beyond a doubt truth bears the same relation to falsehood as light to darkness.”

“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.”

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