George Whitefield
Tracts are the silent preachers of the gospel, going forth into places where the living voice cannot reach.

I planted, Apollos watered, but God gave the growth. So neither he who plants nor he who waters is anything, but only God who gives the growth. He who plants and he who waters are one, and each will receive his wages according to his labor.
1 Corinthians 3:6-8