This [climate deal] means that in the next 15 years, China will have to build the energy equivalent of another China, but one that is entirely based on non-fossil fuels. This sends a signal that China has begun to say goodbye to coal.

No matter what the aggressor intends to do, when the world is truly united, it is then the world, not the aggressor, determines how events develop.

So the 20th century taught the world not to use nuclear weapons and not to proliferate. This is not a good strategy because recent history has shown that wars could erupt with equal devastation.

In every great challenge this country has faced, it has turned to the essential strength of its people, united around a common goal.

In the past, human progress had to come at the cost of the environment. If we wanted energy, we had to burn wood or we had to burn fossil fuels. If we wanted to grow more food, we had to expand farmland, often at the cost of forests. But technology and innovation means we're very quickly decoupling these impacts, such that this conflict is no longer true.

[Angela Merkel] showed what can be achieved when politicians take the right course of action and work to find solutions to the world’s challenges rather than simply shift responsibility to others.

The hour has come for a new generation to lead the Democratic Congress that I so deeply respect.

Voting whether or not to remove a sitting President has been a truly difficult decision, and after listening to the arguments presented by both sides, I have reached my conclusion reluctantly. For the reasons above I must vote yes on the articles of impeachment. I take no pleasure in these votes, and am saddened this is the legacy we leave our children and grandchildren. I have always wanted this President, and every President to succeed, but I deeply love our country and must do what I think is best for the nation.

Invention, discovery, and empires are built of chances taken with high degrees of failure.