1. It’s nice to be important, but it’s more important to be nice.
2. Hardship makes one’s youth fruitful.
3. 初心忘れるべからず (Don’t forget your original intention.)
From T. Ito (Last class on Feb 6th, 2013)
កំនត់ហេតុខ្ញុំ 
មតិថ្មីៗ