Age is a very high price to pay for maturity.

Tom Stoppard

What most persons consider as virtue, after the age of 40 is simply a loss of energy.

Voltaire

persons, virtue, age, energy

None are so old as those who have outlived enthusiasm.

Henry David Thoreau

old as those who have outlived

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

Mark Twain

issue of mind over 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

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

Theodore Roosevelt

old, age, everything,

Old minds are like old horses you must exercise them if you wish to keep them in working order.

John Adams

old minds, exercise, working order, age

When grace is joined with wrinkles, it is adorable. There is an unspeakable dawn in happy old age.

Victor Hugo

grace, wrinkles, adorable, age

I don't feel old. I don't feel anything till noon. That's when it's time for my nap.

Bob Hope

old, anything, noon, age