Why don't you start on a trip around the world, Louis ?" He laughed.
Later, after he had taken his leave, the suggestion reoccurred to him.
He took enough trouble to think about it the next morning; sent out his servant to amass a number of folders advertising world girdling tours of various attractions, read them while lunching, and sat and pondered.

Why not?
It might help.

Because he certainly began to need help.

He had gone quite stale.

Querida was right; he ought to lie fallow.