Youth is the gift of nature, but age is a work of art.

Preparation for old age should begin not later than one's teens. A life which is empty of purpose until 65 will not suddenly become filled on retirement.

There is always some specific moment when we become aware that our youth is gone but, years after, we know it was much later.

Growing old is no more than a bad habit which a busy person has no time to form.

As long as any adult thinks that he, like the parents and teachers of old, can become introspective, invoking his own youth to understand the youth before him, he is lost.

Old age is fifteen years older than I am.

Aging is not lost youth but a new stage of opportunity and strength.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

The trick is growing up without growing old.

Old age comes on suddenly, and not gradually as is thought.