" Still that expressionless face. “Water will wear away stone, sir.” It was a proverb. Or half of one. Water will wear away stone, but it won’t cook supper. Everything has its own strengths. Said with enough irony, it could also imply that since the gods surely had a purpose for everyone the person in question must be good for something, but the speaker couldn’t fathom what it might be. "
― Ann Leckie , Ancillary Sword (Imperial Radch, #2)