Shakespeare's Sonnets: Unthrifty loveliness, why dost thou spend

Unthrifty loveliness, why dost thou spendUpon thy self thy beauty's legacy?Nature's bequest gives nothing but doth lend,And being frank she lends to those are free:Then beauteous niggard, why dost thou abuseThe bounteous largess giv'n thee to give?Profitless usurer, why dost thou useSo great a sum of sums yet can'st not live?For having traffic with thy self alone,Thou of thy self thy sweet self dost deceive;Then how when nature calls thee to be gone,What acceptable audit can'st thou leave? Thy unus'd beauty must be tomb'd with thee, Which usèd lives th' executor to be.