We can know a person by observing his behaviour, understanding the reasons for his actions and ascertaining his intentions. If we do this, how can we not know him?
The superior man will watch over himself when he is alone. He examines his heart that there may be nothing wrong there, and that he may have no cause of dissatisfaction with himself.
The determined scholar and the man of virtue will not seek to live at the expense of injuring their virtue. They will even sacrifice their lives to preserve their virtue complete.
To be fond of learning is to draw close to wisdom. To practice with vigor is to draw close to benevolence. To know the sense of shame is to draw close to courage. He who knows these three things knows how to cultivate his own character. Knowing how to cultivate his own character, he knows how to govern other men. Knowing how to govern other men, he knows how to govern the world, its states, and its families.