The ignorance of one voter in a democracy impairs the security of all.
- John F. KennedyAn Army is a collection of armed men obliged to obey one man. Every change in the rules which impairs the principle weakens the army.
- Andrew Salnera brain-based type of learning disability that specifically impairs a person`s ability to read. These individuals typically read at levels significantly lower than expected despite having normal intelligence.
- Audri Lanford