I will merely add here some notes from another MS. fragment of Dürer's bearing on the same points.
He that would be a painter must have a natural turn thereto.
Love and delight therein are better teachers of the Art of Painting than compulsion is.
If a man is to become a really great painter he must be educated thereto from his very earliest years. He must copy much of the work of good artists until he attain a free hand.
To paint is to be able to portray upon a flat surface any visible thing whatsoever that may be chosen.
It is well for any one first to learn how to divide and reduce, to measure the human figure, before learning anything else.
FOOTNOTES:
The following list comes from another sheet of the MS. (in. 70), but was dearly intended for this place. It is jotted down on a thick piece of paper, on which there are also geometrical designs.