The Notebooks of Leonardo DaVinci

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

We know very well that errors are better recognised in the works of others than in our own; and that often, while reproving little faults in others, you may ignore great ones in yourself

The sorest misfortune is when your views are in advance of your work.

The water you touch in a river is the last of that which has passed, and the first of that which is coming. Thus it is with time present.

Life if well spent, is long.

The sorest misfortune is when your views are in advance of your work.

An object represented in white and black will display stronger relief than in any other way

object can never be seen perfectly unless the space between it and the eye is equal, at least, to the length of the face

Painting is concerned with all the 10 attributes of sight, which are: Darkness, Light, Solidity and Colour, Form and Position, Distance and Propinquity, Motion and Rest.

The tears come from the heart and not from the brain.

I am never weary of being useful