Marcus Aurelius isn't merely saying we improve by watching others—he's suggesting that fruitfulness isn't something we conjure alone, but something that emerges from attentive presence to similar natures. The fig tree doesn't strain to become fruitful by studying the oak; it recognizes itself in another fig tree's example, and that recognition itself triggers growth. When you watch someone five years ahead of you in your own field—not a distant genius, but someone wrestling with your exact problems—something in you simply responds and ripens. The Stoic emperor understood that kinship, not aspiration to the impossible, is what actually makes us better.