A letter from Andrew Fuller to his lifelong friend, John Ryland, encouraging him to make war against sin:
April 2, 1795
...Sin is to be overcome, not so much by maintaining a direct opposition to it, as by cultivating opposite principles. Would you kill the weeds in your garden, plant it with good seed; if the ground be well occupied, there will be less need of the labour of the hoe. If a man wished to quench fire, he might fight it with his hands till he was burnt to death; the only way is to apply an opposite element."
Ryalnd, Life and Death of the Reverend Andrew Fuller, 367.