Youth is the gift of nature, but age is a work of art.

Growing old is no more than a bad habit which a busy person has no time to form.

Old age comes on suddenly, and not gradually as is thought.

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

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

Bashfulness is an ornament to youth, but a reproach to old age.

How incessant and great are the ills with which a prolonged old age is replete.

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

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

I don't believe one grows older. I think that what happens early on in life is that at a certain age one stands still and stagnates.