End justifies the means - The.
One hand washes the other Link to proverb.
You can have too much of a good thing.
When the oak is before the ash, then you will only get a splash; when the ash is before the oak, then you may expect a soak.
If God had meant us to fly he'd have given us wings.
There's a time and a place for everything Link to proverb.
Less is more Link to proverb.