He that is neither one thing nor the other has no friends.
Those who enter through the back door can expect to be shown out through the window
Faithful are the wounds of a friend; but the kisses of an enemy are deceitful.
If you were foolish enough to sing all the summer, you must dance supperless to bed in the winter.
A kindness is never wasted
He that is hard to please, may get nothing in the end.