Importance and benefits of Teaching: It has influence on thousands of people, and it has effects and reflections for more than hundred years

 If you plan for a year, plant a seed. If for ten years, plant a tree. If for a hundred years, teach the people. When you sow a seed once, you will reap a single harvest. When you teach the people, you will reap a hundred harvests.

Kuan Chung, Kuan-tzu (Book of Master Kuan). Kuan tzu chi p'ing, ed. Ling Juheng, vol. 1, p. 12 (1970). Title romanized.