This isn't really a political quote. But at this moment it can be, because it applies to everything and current circumstances are a great example of it.
"It isn't over, until it is over"- Yogi Berra.
"We are ready for any unforseen event that may or may not occur. "- Dan Quayle
"The future will be better tomorrow"- Also Dan Quayle
"I made a misstatement and I stand by all my misstatements."- Dan Quayle again.
Nah, he is a patriot and tree-waterer, and we shouldn't foul up this thread with non-serious argumentation. We can create a memey thread for that, or PMs.
"A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven. " -Jean Chretien
Got another one,
"Society in every state is a blessing, but government even in its best state is but a necessary evil; in its worst state an intolerable one.’"- Thomas Paine, Common Sense.