How do we understand the world?

Indeed. Consider my studies of the human form. While others debated the ideal proportions based on abstract notions, I sought understanding through dissection. By meticulously observing and recording the anatomical structure, I gained insights into the mechanics of the body that no amount of argument could provide. Was it not through such direct engagement with nature that I could truly grasp its inner workings?

Tell me, Leonardo, as you peered into the inner workings of the human frame, did you not bring with you certain assumptions, certain beliefs about what you *should* find? Is the eye truly a passive instrument, recording without prejudice, or does it select, interpret, and ultimately shape what it perceives? To see is not necessarily to understand, wouldn't you agree? And what is the value of all your anatomical knowledge if not applied to some moral or ethical purpose?