In 1826, just a few weeks before he died, Thomas Jefferson received an invitation to celebrate the 50th Anniversary of America's independence in Washington, D.C. with the few co-signers who still lived. This was his reply:

"I should indeed, with peculiar delight, have met and exchanged there, congratulations personally, with the small band, the remnant of that host of worthies, who joined with us, on that day, in the bold and doubtful election we were to make, for our country, between submission, or the sword; and to have enjoyed with them the consolatory fact that our fellow citizens, after half a century of experience and prosperity, continue to approve the choice we made.

May it be to the world what I believe it will be, (to some parts sooner, to others later, but finally to all.) the Signal of arousing men to burst the chains, under which Monkish ignorance and superstition had persuaded them to bind themselves, and to assume the blessings & security of self government. The form which we have substituted restores the free right to the unbounded exercise of reason and freedom of opinion.

All eyes are opened, or opening to the rights of man. The general spread of the light of science has already laid open to every view the palpable truth that the mass of mankind has not been born, with saddles on their backs, nor a favored few booted and spurred, ready to ride them legitimately, by the grace of god. These are grounds of hope for others. For ourselves let the annual return of this day, for ever refresh our recollections of these rights and an undiminished devotion to them."

• Thomas Jefferson, Letter to Roger Chew Weightman, June 24, 1826.