In youth we learn; in old age we understand.

— Marie von Ebner-Eschenbach

I am not young enough to know everything.

— Oscar Wilde

When we are young, we are slavishly employed in procuring something whereby we may live comfortably when we grow old; an…

— Pope

Forty is the old age of youth; fifty is the youth of old age.

— Victor Hugo

The secret to staying young is to live honestly, eat slowly, and lie about your age.

— Lucille Ball

A man is not old until regrets take the place of dreams.

— Unknown