it is better in the long run to be cheated than to cheat. I have learned that there is no middle way.
Death deceives relations often, and doctors sometimes, but the patient - never.
A desire that has never been fulfilled is considerably less acute than one that has been fulfilled and then checked at the source.
When lightning strikes, the mouse is sometimes burned with the farm.
We cannot alter facts, but we can alter our ways of looking at them.
Personally, I think it's a good way to let a child start right in with the laws of Nature before he's old enough to be surprised at them.