"Those who are in love with practice..." - Quote by Leonardo Da Vinci
Those who are in love with practice without knowledge are like the sailor who gets into a ship without rudder or compass and who never can be certain whether he is going. Practice must always be founded on sound theory, and to this Perspective is the guide and the gateway; and without this nothing can be done well in the matter of drawing.
More by Leonardo Da Vinci
More on Practice
“The wise man, after learning something new, is afraid to learn anything more until he has put his first lesson into practice.”
“The habit of writing for my eye is good practice. It loosens the ligaments.”
“When you campaign and have to participate in so many debates just to the win the nomination of your party, you've had a lot of practice. You get to figure out as you go from one debate to another where you made your mistakes. By the time you get to the big debate you're pretty polished.”
More on Theory
“I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in connection with the electric light ... Yet in only two cases did my experiments prove the truth of my theory.”
“Hypotheses are only the pieces of scaffolding which are erected round a building during the course of construction, and which are taken away as soon as the edifice is completed.”
“In theory, practice should work like theory. In practice, it doesn't.”