To err is human, to purr is feline.
~ Robert Byrne
And metaphors like cats behind your smile,Each one wound up to purr,each one a pride,Each one a fine gold beast you've hid inside (...)
~ Ray Bradbury
Jim slept deeply, lulled by the rhythmic rumble of the purring Pye.
~ Luggs
No one has ever been able to discover how they make this subtle sound, and what is more, no one ever will. It is a secret that has endured from the very beginning of the time of cats and will never be revealed.
~ Paul Gallico