salad days

A good salad is fresh, crisp, and usually green. Those attributes are often associated (in both vegetables and people) with vitality and immaturity. The first English writer known to use salad days to associate the fresh greenness of salad with the vigor and recklessness of youth was William Shakespeare. In Antony and Cleopatra, Cleopatra praises Marc Antony's valor and demands that her serving woman do the same. When the servant instead praises her former consort, Caesar, Cleopatra threatens her - until the woman notes that she is only echoing Cleopatra's own effusive past praise of Caesar. Cleopatra's reply marks the first English use of salad days:

"My salad days,
When I was green in judgment, cold in blood,
To say as I said then."