I know that there are those who disagree with the overwhelming scientific evidence on climate change. But here's the thing -- even if you doubt the evidence, providing incentives for energy-efficien cy and clean energy are the right thing to do for our future -- because the nation that leads the clean energy economy will be the nation that leads the global economy. And America must be that nation.
Barack ObamaThings change pretty rapidly. But they don't change inevitably. They change because you work for it.
Barack ObamaWe need to internalize this idea of excellence. Not many folks spend a lot of time trying to be excellent.
Barack ObamaWe've endured too many tragedies. And each time I learn the news I react not as a President, but as anybody else would - as a parent.
Barack Obama