"1. The greedy do not get success; 2. Be unhurried to enter opponent´s territory; 3. Take care of oneself when attacking the other; 4. Discard a stone to gain sente; 5. Abandon small to save big; 6. When in danger, sacrifice; 7. Make thick shape, avoid hasty moves; 8. A move must respond to the opponent's; 9. Against strong positions, play safely; 10. Look for peace, avoid fighting in an isolated or weak situation."
January 1, 1970
https://en.wikiquote.org/wiki/Go_(game)