He who is contented is rich.
Loss is not as bad as wanting more.
Those who know when it is enough will not perish.
The fourth (of the four cardinal virtues) is supportiveness: this manifests as service to others without expectation of reward. (Paraphrased: Such service is not a mere conforming to some external rule of behavior, but instead a manifestation of your original nature).
Face the simple fact before it comes involved. Solve the small problem before it becomes big.
Go to the people. Learn from them. Live with them. Start with what they know. Build with what they have. The best of leaders when the job is done, when the task is accomplished, the people will say we have done it ourselves.