Mandela understood something most of us learn only through hard experience: that the gift isn't really the help itself, but the *voluntary surrender* of your most finite resource—hours you'll never get back. When you give time rather than money, you're offering something you cannot replenish, which is why it stings differently when it's wasted and glows differently when it matters. A parent sitting through their child's rambling story about a playground incident, fully present despite a looming deadline, understands this in their bones. The absence of expectation isn't merely noble restraint; it's what transforms the act from transaction into genuine presence.