If there were one word that could act as a standard of conduct for one's entire life, perhaps it would be 'thoughtfulness.
ConfuciusRiches and honor are what everyone desires, but if they can be gained only by doing evil, they must not be held. Don't worry about not being in office, worry about qualifying yourself for office. Don't worry that no one knows you, but seek to be worthy of being known.
ConfuciusHow great is the path proper to the Sage! Like overflowing water, it sends forth and nourishes all things, and rises up to the height of heaven. All-complete is its greatness! It embraces the three hundred rules of ceremony, and the three thousand rules of demeanor. It waits for the proper man, and then it is trodden. Hence it is said, 'Only by perfect virtue can the perfect path, in all its courses, be made a fact.'
Confucius