Whoa, yeah, this is a difficult one, Clemens was a freakin walking quote machine. Give the destruction of reality in our political discourse of late (nothing new really, just more intense nowadays??), I'd go with this one for today:
"Get your facts first, then you can distort them as you please." MT
Yes, he can make your head spin with options! I thought this one was curiously outside of his standard quips and jibes though... More sweet and sad.
I've a slew of quotes to go, but you also mention a good one.
Thanks for taking the time! :)