The gods had condemned Sisyphus to ceaselessly rolling a rock to the top of a mountain, whence the stone would fall back of its own weight. They had thought with some reason that there is no more dreadful punishment than futile and hopeless labor. Albert Camus
There lies at the back of every creed something terrible and hard for which the worshipper may one day be required to suffer. E. M. Forster
Somebody just back of you while you are fishing is as bad as someone looking over your shoulder while you write a letter to your girl. Ernest Hemingway
The fly on the back of a water buffalo thinks that it's taller than the buffalo. Filipino Proverb
Only heaven can see the back of a sparrow. Bantu Proverb
Ill comes often on the back of worse. English Proverb