FABRICATI DIEM, PVNC.
-- The motto of the Ankh-Morpork City Watch
(Terry Pratchett, Guards! Guards!)
Han Solo:
You said you wanted to be around when I made a mistake,
well, this could be it, sweetheart.
Princess Leia:
I take it back.
If we knew what it was we were doing, it would not be called research, would it?
-- Albert Einstein
'It must have been Fate that brought you here,' said Twoflower.
'Yes, it's the sort of thing he likes to do,' said Rincewind.
(Interesting Times)
The wolf
Who longs
To roam and prowl
Should shave before
He starts to howl
Burma-Shave (1947)