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.
As free human beings we can use our unique intelligence to try to understand ourselves and our world. But if we are prevented from using our creative potential, we are deprived of one of the basic characteristics of a human being.
Worry a little bit every day and in a lifetime you will lose a couple of years. If something is wrong, fix it if you can. But train yourself not to worry: Worry never fixes anything.
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.
Men are not free when they're doing just what they like. Men are only free when they're doing what the deepest self likes. And there is getting down to the deepest self! It takes some diving.
Look at a day when you are supremely satisfied at the end. It's not a day when you lounge around doing nothing; it's a day you've had everything to do and you've done it.