Anyone nit-picking enough to write a letter of correction to an editor doubtless deserves the error that provoked it.
The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn.
The illiterate of the future will not be the person who cannot read. It will be the person who does not know how to learn.
You can use all the quantitative data you can get, but you still have to distrust it and use your own intelligence and judgment.
Man has a limited biological capacity for change. When this capacity is overwhelmed, the capacity is in future shock.