A humbly poetic, gently clownlike, supremely innocent, and illimitably affectionate creature (slightly resembling a child's drawing of a cat, but gifted with the secret grace and obvious clumsiness of a penguin on terra firma) who is never so happy as when egoist-mouse, thwarting altruist-dog, hits her in the head with a brick. Dog hates mouse and worships "cat", mouse despises "cat" and hates dog, "cat" hates no one and loves mouse.
A Foreword to Krazy (1946)