A selection from a letter written by missionary Henry Martyn, July 4, 1808, to Rev. D. Brown, referring to some problems he had faced with Roman Catholicism:
I feel my spirit roused to preach against Popery with all the zeal of Luther. How small and unimportant are the hair splitting disputes of the blessed people at home, compared with the formidable agents of the devil with whom we have to combat here!
The Life and Letters of Henry Martyn, by John Sargent, first published in 1819, published by the Banner of Truth, 1985, p. 246.