The wisdom here isn't merely that doing beats reading—it's that understanding itself is a different creature entirely from knowledge or memory. Confucius grasps something neuroscience would later confirm: your hands and body don't just *apply* what your mind already knows; they're actually *part* of how meaning gets built in the first place. When you fumble through assembling furniture without instructions, you're not just reinforcing facts you learned passively—you're creating an embodied understanding that passive observation never could. That's why a surgeon's hands remember what her lectures never could.