To rise at six, to sleep at ten, To sup at ten, to dine at six, Make a man live for ten times ten. - Victor Hugo

This is the shade of meaning: the door of a physician should never be closed; the door of a priest should always be open.

There are plenty who regard a wall behind which something is happening as a very curious thing.

Do you know what friendship is?' he asked.
'Yes,' replied the gypsy; 'it is to be brother and sister; two souls which touch without mingling, two fingers on one hand.'
'And love?' pursued Gringoire.
'Oh! love!' said she, and her voice trembled, and her eye beamed. 'That is to be two and to be but one. A man and a woman mingled into one angel. It is heaven.