Shellen says:

as you grow, you learn more.if you stayed at twenty-two, you'd always be ignorant as you were at twenty-two, aging is not just decay,you know. it's growth. it's more than the negative that you're going to die, it's also the positive that you understand you're going to die,and that you live a better life because of it.

yes, i said,but if aging were so valuable, why do people always say,"oh, i wish i were young again." you never hear people say, "i wish i were sixty-five".

he smiled. "you know what that reflects? unsatisfied lives. unfulfilled lives. lives that haven't found meaning. because if u've found meaning in your life, you don't want to go back. you want to see more,do more.you can't wait till you are sixty-five.

an extract from [ tuesdays with morrie ] , page 118.

p/s: if you like [ tuesdays with morrie ] , you will also like [ the monk who sold his ferrari ] by robin s. sharma