"I do not believe one can settle how much we ought to give. I am afraid the only safe rule is to give more than we can spare. In other words, if our expendture on comforts, luxuries, amusements, etc., is up to the standard common among those with the same income as our own, we are probably giving away too little. If our charities do not at all pinch or hamper us, I should say they are too small. There ought to be things we should like to do and cannot do because our charitable expenditure excludes them . . . For many of us the great obsstacle to charity lies not in our luxurious living or desire for more money, but in our fear--fear of insecurity. This must often be recognized as a temptation."
--C S Lewis