The courage of the poet is to keep ajar the door that leads into madness. Christopher Morley
Philosophy is like trying to open a safe with a combination lock: each little adjustment of the dials seems to achieve nothing, only when everything is in place does the door open. Ludwig Wittgenstein
By increasing the size of the keyhole, today's playwrights are in danger of doing away with the door. Peter Ustinov
The smaller the cabin the wider the door. Irish Proverb
When in someone else's home leave your defects at the door. Rwandan Proverb
Who stands by the door of his house is not yet gone away. Finnish Proverb