More quotes by Leonardo da Vinci

"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."
"The human foot is a masterpiece of engineering and a work of art."
"Where the spirit does not work with the hand, there is no art."
"As a well spent day brings happy sleep, so life well used brings happy death."
"Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."