When the cat's away the mice will play.
English proverb
Women and cats will do as they please, and men and dogs should relax and get used to the idea.
Robert A. Heinlein
Cats are intended to teach us that not everything in nature has a function.
Joseph Wood Krutch
There are no ordinary cats.
Colette
No matter how much the cats fight, there always seem to be plenty of kittens.
Abraham Lincoln
The dog may be wonderful prose, but only the cat is poetry.
French Proverb
Most cats, when they are out want to be in, and visa versa, and often simultaneously.
Louis J. Camuti
Cats are a mysterious kind of folk. There is more passing in their minds than we are aware of.
Sir Walter Scott
The mathematical probability of a common cat doing exactly as it pleases is the one scientific absolute in the world.
Lynn M. Osband