the session of the first congress, convened since republicanism has recovered it’s ascendancy [in the election of 1800], is now drawing to a close. they will pretty compleatly fulfil all the desires of the people … the people are nearly all united, their quondam [former, i.e. Federalist] leaders infuriated with the sense of their impotence … and all is now tranquil, firm and well as it should be. I add no signature because unnecessary for you.
To Tadeusz Kosciuszko, April 2, 1802
Patrick Lee’s Explanation
A measure of true leadership is accomplishing what you said you would do.
With the republicans (small r) in control of the Congress and Presidency, they worked together to accomplish the goals Jefferson had laid before the people. Deleted from this excerpt, but available in full at the link above, those successes were:
1. Reduced the army and navy to only what was necessary for defense
2. Curtailed the President’s patronage powers and cut Executive Branch offices in half.
3. Suppressed taxes on ordinary citizens
4. Economized in a way that would still honor payments on the national debt and eliminate that debt in 18 years
5. Reduced the size of the judicial branch, enlarged pre-1801 to increase Federalist power
6. Welcomed refugees from other countries
7. Eliminated all public governmental ceremonies patterned after England’s
Jefferson claimed near unity of the citizenry, to the fury of their former leaders.
He didn’t sign this letter, saying Kosciuszko would know who wrote it. There was another reason. Political opponents regularly pilfered the mails. Since Jefferson apparently could not send this letter by private courier, his preferred method, he would omit his name so his straightforward assertions could not be used against him.