What the good wife spares the cat eats.

What the good wife spares the cat eats.
When candles are out all cats are gray.

The first appears the most correct.

What the good wife spares the cat eats. Favourites are well cared for.

When candles are out all cats are gray. In the dark all are alike. This is said of beauty in general.

When the cat is away the mice will play. "The Bachelor's Banquet," 1603. Heywood's "Woman Killed with Kindness," 1607. When danger is past, it is time to rejoice.

Fonte: Cats