There are few souls who are so vigorously organized as to be able to maintain themselves in the calm of a strong resolve: all honest consciences are capable of the generosity of a day, but almost all succumb the next morning under the effort of the sacrifice. [ George Sand ]

It is like the Greek fire used in ancient warfare, which burnt unquenched beneath the water; or like the weeds which, when you have extirpated them in one place, are sprouting forth vigorously in another spot, at the distance of many hundred yards; or, to use the metaphor of St. James, it is like the wheel which catches fire as it goes, and burns with fiercer conflagration as its own speed increases. [ F. W. Robertson ]