Tao Te Ching

“When heat, moisture, and fertile soil come together, you do whatever you can to sow grain. When the crops are ready in autumn, you do whatever you can to harvest them... Now that you have a precious human life free of all impediments and endowed with all favorable conditions, apply yourself unrelentingly to spiritual practice!”

— Shechen Gyaltsap 1871 – 1926 CE via Matthieu Ricard
Dilgo Khyentse Rinpoche's main teacher
from Chariot of Complete Liberation