Williams isn't urging mere travel or adventure—he's insisting that the act of *trying* itself is the only thing that constitutes a life worth living. Notice the urgency in that repetition: "Make voyages! Attempt them!" It's almost frantic, suggesting he'd watched too many people defer living until circumstances felt perfect. When a musician decides to record that album in her living room rather than waiting for a record deal, or when someone finally takes that pottery class they've mentioned for five years, they're answering Williams's call—not because the voyage will necessarily succeed, but because the attempt itself is the point.