None are so old as those who have outlived enthusiasm.

Henry David Thoreau

age, old, outlived

Age is not a particularly interesting subject. Anyone can get old. All you have to do is live long enough.

Don Marquis

age, interesting, live long enough

Old age is like everything else. To make a success of it, you've got to start young.

Theodore Roosevelt

old, age, everything,

Age is a very high price to pay for maturity.

Tom Stoppard

Age is an issue of mind over matter. If you don't mind, it doesn't matter.

Mark Twain

issue, age, matter

Youth is when you're allowed to stay up late on New Year's Eve. Middle age is when you're forced to.

Bill Vaughan

youth, allowed, late, age

None are so old as those who have outlived enthusiasm.

Henry David Thoreau

old as those who have outlived

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

Hosea Ballou

forty is old age, fifty is youth of old age

As I grow older, I pay less attention to what men say. I just watch what they do.

Andrew Carnegie

age, older, attention