“No wonder such a big part of growing old is learning to lower one's expectations, only we call that maturity and wisdom so as not to sound too defeatist. When you are young you demand ecstasy; when you are old you settle for anything short of agony.”
“Please forgive the long letter; I didn’t have time to write a short one.”
“One of the reasons mature people stop learning is that they become less and less willing to risk failure.”
“I didn't have time to write a short letter, so I wrote a long one instead.”
“Venting every feeling isn't mature. Learning to deal with uncomfortable and unpleasant feelings is an important aspect of maturity.”