Survival of all or none.
One raindrop raises the sea.
Weapons are enemies, even to their owners.
Give more, take less.
Others first, self last.
Observe, listen, and learn.
Do one thing at a time.
Sing every day.
Exercise imagination.
Eat to live, don't live to eat.
Don't p... (last line is missing)
and of course, the first letter of each line spells out the twelfth lesson: Sow good seed.