One trains the mind the other minds the train.
One had to P.
They're both brown except the snowball.
You can tune the lawnmower and the owner's neighbors don't mind if you don't return the sax when you borrow it.
They couldn't be further from my mind.
Teacher: Because it's 90 degrees over there.
Student: A teacher!
He was a good conductor.
Because they're bad conductors.
Because of the conductor.