Respectfully Quoted: A Dictionary of Quotations. 1989.
Kuan Chung (d. 645 B.C.)
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 ping, ed. Ling Juheng, vol. 1, p. 12 (1970). Title romanized.