golden years

be a hundred years too early

To be so immature and unprepared as to have no hope of achieving an accomplishment.

donkey's years

A long time, years and years.

four score and seven years ago

Used (sometimes sarcastically) to indicate that a past event being mentioned is particularly important: a long time ago; many years ago.

golden age

A period of happiness, peace, prosperity, and great progress.

golden goose

Something that generates much profit or gives great advantages.

golden handcuffs

Any arrangement or agreement designed to provide extremely favorable benefits or pay, so as to discourage a participant from choosing to leave it, especially to retain a choice employee in a role that is unpleasant to them.

golden handshake

A generous severance payment, especially as an inducement to leave employment.

golden hello

A payment offered to an employee as an inducement to join, especially if currently working for a competitor.