I am well aware of the Toil and Blood and Treasure, that it will cost Us to maintain this Declaration, and support and defend these States. Yet through all the Gloom I can see the Rays of ravishing Light and Glory. I can see that the End is more than worth all the Means. And that Posterity will triumph in that Days Transaction, even although We should rue it, which I trust in God We shall not.
Letter to Abigail Adams (3 July 1776), published in The Adams Papers: Adams Family Correspondence (2007) edited by Margaret A. Hogan