sharp·en /ˈSHärpən/
Verb
1. to make a pointed edge
"The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools."
- Confucius (551 B.C. - 479 B.C) 2. to make acute or more sensitive to feeling "As iron sharpens iron, so one person sharpens another." - Proverbs 27:17