Invention is the talent of youth, as judgment is of age

Youth lives on hope, old age on remembrance

The old age of an eagle is better than the youth of a sparrow

For age is opportunity no less than youth itself, though in another dress, and as the evening twilight fades away, the sky is filled with stars, invisible by day

As I approve of a youth that has something of the old man in him, so I am no less pleased with an old man that has something of the youth. He that follows this rule may be old in body, but can never be so in mind

It is a pity that, as one gradually gains experience, one loses one's youth

If youth knew if age could

There is a fountain of youth it is your mind, your talents, the creativity you bring to your life and the lives of people you love. When you learn to tap this source, you will truly have defeated age

An inordinate passion for pleasure is the secret of remaining young

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