This is an excerpt from a chapter on Rewards and Punishments, from "Our Home". 1899
"As a rule the reward when given should appeal to the mental rather than the physical.
It should be something which has a tendency to stimulate the thinking or inventive power rather than something which merely satisfies a physical want. It is generally better to give a book than a drum, although there are far meaner rewards than a drum. Candy and sweetmeats should never under any circumstances be offered. That which is unfit for an adult is surely unfit to constitute a reward for a child. It is a fact that the world makes its greatest efforts in response to the demands of sensual gratification. Is it unreasonable to suppose that the foundation of this evil is laid in childhood through the pernicious practise of rewarding children with sweetmeats?"
I'm afraid I stand guilty, being a Grandfather, I might be accused of this evil, pernicious practise on an occasion or two. That aside, I like the advice and it makes me think a little instead of missing an opportunity to do something that is more than an immediate reward, like candy would be.