"Could the peaceable principle of the Quakers be universally established, arms and the art of war would be wholly extirpated: But we live not in a world of angels...I am thus far a Quaker, that I would gladly agree with all the world to lay aside the use of arms, and settle matters by negotiation: but unless the whole will, the matter ends, and I take up my musket and thank Heaven He has put it in my power."

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There will be setbacks and false starts. There are many who won't agree with every decision or policy I make as president. And we know the government can't solve every problem. But I will always be honest with you about the challenges we face. I will listen to you, especially when we disagree. And, above all, I will ask you to join in the work of remaking this nation, the only way it's been done in America for 221 years -- block by block, brick by brick, calloused hand by calloused hand.

— Barack Obama