Some survived due to advancements in engineering. Personally I'd take a vaccine over living in an iron lung. http://www.theatlantic.com/national/archive/2012/01/what-america-looked-like-polio-children-paralyzed-in-iron-lungs/251098/

If violence wasn't your last resort, you failed to resort to enough of it.

When the messenger arrives and says 'Don't shoot the messenger,' it's a good idea to be prepared to shoot the messenger, just in case.

Maxim 3: An ordnance technician at a dead run outranks everybody. -The Seventy Maxims of Maximally Effective Mercenaries

Only cheaters prosper.

As long as we only have to lie to the enemy, it's honest enough for me. -Captain Tagon

Right now I've got just two rules to live by. Rule one: don't taunt elephants. Rule two: don't stand next to anybody who taunts elephants. -Sergeant Schlock