¡Si Se Puede! (Yes We Can!)
During the 2008 campaign that propelled Barack Obama into the presidency, then candidate Obama often invoked the phrase "Yes We Can!"
The slogan turned out to be a winning, if unlikely, reminder of the potential electoral superiority of people over money and power. It underscored the innate optimism -- indeed, to use his own description, the sheer "audacity" -- of Obama's claim to the presidency.