Da Vinci was the first to accurately describe trees’ branching rules. He created sketches of trees in a page of his notebook based on the rule that daughter branches and twigs have the same combined cross-sectional area as the branch from which they originated.
Leonardo did not love men. He was not as saintly as San Francisco, who loved them in spite of themselves; or as prophetic as Savonarola, who loved them because he flagellated them; or as passionate as Michelangelo, who loved them, and hated them, because of his need to be in conflict with them.
Leonardo could not love them. They offended him, with their greed, laziness, arrogance and willful ignorance.
In the preface to his anatomy books of, he writes: “Often when I see a man pick up a book, I fear, as the monkey, he will bring it to his nose, or ask if it is something to eat.”
Those who see;
Those who see when they are shown;
Those who never see."
