Like a graceful vase, a cat, even when motionless, seems to flow. – George F. Will

A kitten is so flexible that she is almost double; the hind parts are equivalent to another kitten with which the forepart plays. She does not discover that her tail belongs to her until you tread on it. – Henry David Thoreau

If a dog jumps into your lap, it is because he is fond of you; but if a cat does the same thing, it is because your lap is warmer. – Alfred North Whitehead