1Thomas Jefferson to John R. Cotting, 7 February 1821 (Jefferson Papers)
I have duly recieved your favor of Jan. 20 and am sorry it is not in my power to render any service to the your useful undertaking. age and ill health render me no longer equal to the labors of science, and a disabled wrist making writing slow and painful, has obliged me to abandon even common correspondence. with my regrets be pleased to accept the tender of my great respect. PoC ( MHi ); on...