Richard Henry Lee, Resolution in Congress, June 7, 1776:

Resolved: That these colonies are, and of right ought to be, free and independent states, that they are absolved of all allegiance to the British Crown, and that all political connection between them and the state of Great Britain is, and ought to be, totally dissolved. That it is expedient forthwith to take the most effectual measures for forming foreign Alliances. That a plan of confederation be prepared and transmitted to the respective colonies for their consideration and approbation.

John Adams, letter to Abigail Adams, July 3, 1776:

It ought to be commemorated, as the Day of Deliverance by solemn Acts of Devotion to God Almighty. It ought to be solemnized with Pomp and Parade, with Shews, Games, Sports, guns, Bells, Bonfires and Illuminations from one End of this Continent to the other from this Time forward forever more. You will think me transported with Enthusiasm but I am not. 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 tryumph in that Days Transaction, even altho We should rue it, which I trust in God We shall not.

Benjamin Franklin:

We must all hang together, or assuredly we shall all hang separately.

Stephen Hopkins (Rhode Island Delegate):

My hand trembles, but my heart does not.