1Thomas Jefferson to Thomas Appleton, 18 July 1816 (Jefferson Papers)
Your letters of Mar. 20. & Apr. 15. are both recieved: the former only a week ago. they brought me the first information of the death of my antient friend Mazzei , which I learn with sincere regret. he had some peculiarities, & who of us has not? but he was of solid worth; honest, able, zealous in sound principles moral & political, constant in friendship, and punctual in all his undertakings....