Look not mournfully into the past, it comes not back again. Wisely improve the present, it is thine. Go forth to meet the shadowy future without fear and with a manly heart.
Rules of living Don't worry, eat three square meals a day,say your prayers, be courteous to your creditors, keep your digestion good,steer clear of biliousness,exercise, go slow and go easy. May be there are other things that your special case requires to make you happy, but my friend, these, i reckon, will give you a good life.
As an example to others, and not that I care for moderation myself, it has always been my rule never to smoke when asleep, and never to refrain from smoking when awake.
One problem with our current society is that we have an attitude towards education as if it is there to simply make you more clever, make you more ingenious... Even though our society does not emphasize this, the most important use of knowledge and education is to help us understand the importance of engaging in more wholesome actions and bringing about discipline within our minds. The proper utilization of our intelligence and knowledge is to effect changes from within to develop a good heart.
Wisdom doesn't automatically come with old age. Nothing does - except wrinkles. It's true, some wines improve with age. But only if the grapes were good in the first place.