He had this old southern idea of what a lady should be.

Fighting crime with education is an old and good idea.

Thus it would seem that old ideas continued for a long time.

But those old ideas do take a long time to die.

This is an old idea whose time may have finally come.

An old idea, perhaps, but one worth looking at again.

But he lost it under stress of his old idea.

But you know the old idea, we're only three people away from anybody.

We cannot kill off an old idea in order to develop a better one.

Sometimes it is worth taking a new look at old ideas.