If it be their duty not to grudge thee thy substance, it is thine to do all that may sweeten their labour.
Remember that when our Lord said, 'How hardly shall they that have riches enter into the kingdom of heaven,' He replied also to them who asked, 'Who then can be saved ?' 'The things which are impossible with men are possible with God,' that is, man left to his own temptations would fail; but, strengthened by God, he shall be saved.

If thy riches are the tests of thy trial, so may they also be the instruments of thy virtues.

Prove by thy riches that thou art compassionate and tender, temperate and benign, and thy riches themselves may become the evidence at once of thy faith and of thy works.
"We have constantly on our lips the simple precept, 'Do unto others as you would be done by.' Why do we fail so often in the practice?
Because we neglect to cultivate that SYMPATHY which nature implants as an instinct, and the Saviour exalts as a command.

If thou wouldst do unto thy neighbour as thou wouldst be done by, ponder well how thy neighbour will regard the action thou art about to do to him.

Put thyself into his place.