True science investigates and brings to human perception such truths and such knowledge as the people of a given time and society consider most important. Art transmits these truths from the region of perception to the region of emotion.
You see, painting has now become, or all art has now become completely a game, by which man distracts himself. What is fascinating actually is, that it's going to become much more difficult for the artist, because he must really deepen the game to become any good at all.
Military tactics are like unto water; for water in its natural course runs away from high places and hastens downwards... Water shapes its course according to the nature of the ground over which it flows; the soldier works out his victory in relation to the foe whom he is facing. Therefore, just as water retains no constant shape, so in warfare there are no constant conditions. He who can modify his tactics in relation to his opponent and thereby succeed in winning, may be called a heaven-born captain.
The sneaking arts of underling tradesmen are thus erected into political maxims for the conduct of a great empire; for it is the most underling tradesmen only who make it a rule to employ chiefly their own customers. A great trader purchases his good always where they are cheapest and best, without regard to any little interest of this kind.
One of the surest tests of the superiority or inferiority of a poet is the way in which a poet borrows. Immature poets imitate mature poets steal bad poets deface what they take and good poets make it into something better or at least something different. The good poet welds his theft into a whole of feeling which is unique utterly different than that from which it is torn the bad poet throws it into something which has no cohesion. A good poet will usually borrow from authors remote in time or alien in language or diverse in interest.
I believe it is no wrong Observation, that Persons of Genius, and those who are most capable of Art, are always fond of Nature, as such are chiefly sensible, that all Art consists in the Imitation and Study of Nature. On the contrary, People of the common Level of Understanding are principally delighted with the Little Niceties and Fantastical Operations of Art, and constantly think that finest which is least Natural.
He who without the Muse's madness in his soul comes knocking at the door of poesy and thinks that art will make him anything fit to be called a poet, finds that the poetry which he indites in his sober senses is beaten hollow by the poetry of madmen.
Do proper homage to thine idol's eyes; But no too humbly, or she will despise Thee and thy suit, though told in moving tropes: Disguise even tenderness if thou art wise.