Shakespeare's Sonnet 4

Unthrifty loveliness, why dost thou spendUpon thyself 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 given thee to give?Profitless usurer, why dost thou useSo great a sum of sums, yet canst not live?For having traffic with thyself alone,Thou of thyself thy sweet self dost deceive:Then how when nature calls thee to be gone,What acceptable audit canst thou leave?Thy unused beauty must be tombed with thee,Which, used, lives th’ executor to be.

Wasteful beauty, why do you spend your inheritance of beauty only on yourself? Nature’s gift is not a gift but a loan, and because she is generous, she lends to those who give freely. Then, beautiful miser, why do you misuse the generous wealth given to you to pass on? Unprofitable moneylender, why do you use such an enormous fortune yet fail to live on? By doing business only with yourself, you cheat your own lovely self. Then, when nature calls you to leave, what satisfactory account can you give? Your unused beauty must be buried with you. Put to use, it would live on to carry out your wishes.