That which you know, know not; and that which you see, see not.
A mouse relies not solely on one hole.
Love has both its gall and honey in abundance: it has sweetness to the taste, but it presents bitterness also to satiety.
You love a nothing when you love an ingrate.
It is difficult to fly without wings.
If you squander on a holyday, you will want on a workday unless you have been sparing.