'Music - man's humanity to man' -
Chaucer (not really, but I just wanted to invoke his name. He is considered the Father of English Literature, after all! (like I knew that without looking it up.) Not to mention his name rhymes with saucer!
From my book, 'I Think I Smell a Quote':
(2 for 1 if you don't mind) (I would, but anyway...)
'What I know today may not be what I know tomorrow'
'There's no tomorrow like tomorrow' -Unavailable