This is basically the second half of the Robustness Principle[1]:
Be conservative in what you do, be liberal in what you accept from others.
If you use both halves things get even better. For example this is why digital electronics work — circuits are forgiving about the voltage ranges of their inputs but very precise about their outputs.
If you use both halves things get even better. For example this is why digital electronics work — circuits are forgiving about the voltage ranges of their inputs but very precise about their outputs.
It's also a nice way to live life :'(
[1] http://en.wikipedia.org/wiki/Robustness_principle