No man knows he is young while he is young.

No man knows he is young while he is young.

Youth today must be strong, unafraid, and a better taxpayer than its father.

Youth today must be strong, unafraid, and a better taxpayer than its father.

Smiling always with a never fading serenity of countenance, and
flourishing in an immortal youth.

Smiling always with a never fading serenity of countenance, and
flourishing in an immortal youth.

Many people use their youth to make their old age miserable

Many people use their youth to make their old age miserable

I'm youth, I'm joy, I'm a little bird that has broken out of the egg.

I'm youth, I'm joy, I'm a little bird that has broken out of the egg.

The most aggravating thing about the younger generation is that I
no longer belong to it.

The most aggravating thing about the younger generation is that I
no longer belong to it.

You can only be young once. But you can always be immature.

You can only be young once. But you can always be immature.

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

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

You are only young once, and if you work it right, once is enough.

You are only young once, and if you work it right, once is enough.