Don't get cynical. Don't ever think you can't make a difference.

No country can hide from the dangers of carbon pollution

We believe that no matter where you live - whether a village in Punjab or the bylanes of Chandni Chowk, an old section of Kolkata or a new high-rise in Bangalore - every person deserves the same chance to live in security and dignity, to get an education, to find work, and to give their children a better future.

Politics didn't lead me to working people. Working people led me into politics.

[My kids] complained about Secret Service as they became teenagers, and Secret Service has done the very best job they could accommodating them, so it hasn't restricted any of their activities.

I stand here today humbled by the task before us, grateful for the trust you have bestowed, mindful of the sacrifices borne by our ancestors.

The biggest threat, when it comes to climate change and pollution, isn't going to come from us because we only have 300 million people. It's going to come from China with over 1 billion people and India with over 1 billion people.