Imitation of Christ

Pro nulla re mundi, et pro nullius hominis dilectione aliquod malum est faciendum. Sed pro utilitate indigentis bonum opus aliquando intermittendum aut quandoque pro meliori mutandum. Hoc nam facto opus bonum non destruitur, sed in melius commutatur. Sine charitate opus externum non prodest quemquam. Quicquid autem ex charitate agitur quantumcumque etiam parvum sit, et despectum totum efficitur fructuosum. Magis si quidem Deus pensat ex quanto quis agit, quam quantum quis facit. 

For no worldly good whatever, and for the love of no man, must anything be done which is evil, but for the help of the suffering a good work must sometimes be postponed, or be changed for a better; for herein a good work is not destroyed, but improved. Without charity no work profits, but whatsoever is done in charity, however small and of no reputation it be, brings forth good fruit; for truly God considers what a man is able to do, more than the greatness of what he does.

Imitation of Christ, I, 15:1