Act without expectation.
Can you deal with the most vital matters by letting events take their course? Can you step back from you own mind and thus understand all things? Giving birth and nourishing, having without possessing, acting with no expectations, leading and not trying to control: this is the supreme virtue.
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).
Can you love or guide someone without any kind of expectation?