If martyrdom is now on the decline, it is not because martyrs are less zealous, but because martyr-mongers are more wise. The light of intellect has put out the fire of persecution, as other fires are observed to smoulder before the light of the same.
A mutual friend, Benjamin Rush, brought [Tomas Jefferson and John Adams] together in 1812, and they went on to exchange letters for the rest of their lives. But in their correspondence they tended to avoid the most controversial issues, such as slavery.