If at first you don't succeed, you may be at your level of incompetence already.
Middle age is when it takes longer to rest than to get tired.
I inherited my ability from both parents; my mother's ability for spending money, and my father's ability for not earning it.
Heredity is what sets the parents of a teenager wondering about each other.
The unexpected always happens.
No committee could ever come up with anything as revolutionary as a camel - anything as practical and as perfectly designed to perform effectively under such difficult conditions.