The older a fool the worse he is (There is no fool like an old fool), [154]

The older one grows the more one learns, [328]

The older, the colder; the more avaricious, the more vicious, [154]

The one-eyed is a king in the land of the blind, [6], [172], [222], [286]

The only victory over love is flight, [31]

The only way to keep a secret is to say nothing, [25]

The open door invites the thief, [306] (See The hole; also Opportunity)

The owl does not praise the light, nor the wolf the dog, [402]

The owl thinks her children the fairest, [402]

The ox comes to the yoke at the call of his feeder, [197]