In whatever system where the weight attached to the wheel should be the cause of motion of the wheel, without any doubt… — Leonardo da Vinci Copy Share Image
We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary… — Leonardo da Vinci Copy Share Image
“To me it seems that those sciences are vain and full of error which are not born of experience, mother of all… — Leonardo da Vinci Copy Share Image
The painter who has no doubt about his own ability will attain very little. — Leonardo da Vinci Copy Share Image
Beyond a doubt truth bears the same relation to falsehood as light to darkness. — Leonardo da Vinci Copy Share Image
There is no doubt that truth is to falsehood as light is to darkness; and so excellent a thing is truth that… — Leonardo da Vinci Copy Share Image
The evil which does me no harm is like the good which in no wise avails me. — Leonardo da Vinci Copy Share Image
A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light. — Leonardo da Vinci Copy Share Image
An arch consists of two weaknesses which, leaning one against the other, make a strength. — Leonardo da Vinci Copy Share Image
But to me all sciences seem vain and full of error that are not born of experience, mother of all certainty, and do not… — Leonardo da Vinci Copy Share Image
It is ordained that to the ambitious, who derive no satisfaction from the gifts of life and the beauty of the world, life shall… — Leonardo da Vinci Copy Share Image
Be a mirror, absorb everything around you and still remain the same — Leonardo da Vinci Copy Share Image
Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking,… — Leonardo da Vinci Copy Share Image
People reveal themselves completely only when they are thrown out of the customary conditions of their life. — Leonardo da Vinci Copy Share Image
