A baby is God's opinion that the world should go on.
Carl Sandburg 

A child of five would understand this. Send someone to fetch a child of five.
Groucho Marx (1895-1977) 

A child of fortune.
Pliny 

A wasted youth is better by far than a wise and productive old age.
Meat Loaf  , from the song "Wasted Youth" on the album Bat Out of Hell II

Actually, the only memory I have of being a Cub Scout was trying to get my hat back. That was all I did. Run back and forth at my bus stop going "Quit it."
Jerry Seinfeld 

Adolescence is a period of rapid changes. Between the ages of 12 and 17, for example, a parent ages as much as 20 years.
Anonymous 

Age does not make us childish, as some say; it finds us true children.
Johann Wolfgang von Goethe (1749-1832) 

Blessed are the young for they shall inherit the national debt.
Herbert Hoover 

Breast Feeding should not be attempted by fathers with hairy chests, since they can make the baby sneeze and give it wind.
Mike Harding  - The Armchair Anarchist's Almanac

By the time a man realizes that maybe his father was right, he usually has a son who thinks he's wrong.
Charles Wadsworth