The nobler sort of man ...

The nobler sort of man emphasizes the good qualities in others, and does not accentuate the bad. The inferior does the reverse. . . . The nobler sort of man pays special attention to nine points. He is anxious to see clearly, to hear distinctly, to be kindly in his looks, respectful in his demeanor, conscientious in his speech, earnest in his affairs. When in doubt, he is careful to inquire; when in anger, he thinks of the consequences; when offered an opportunity for gain, he thinks only of his duty.
The nobler sort of man emphasizes the good qualities in others, and does not accentuate the bad. The inferior does the reverse. . . . The nobler sort of man pays special attention to nine points. He is anxious to see clearly, to hear distinctly, to be kindly in his looks, respectful in his demeanor, conscientious in his speech, earnest in his affairs. When in doubt, he is careful to inquire; when in anger, he thinks of the consequences; when offered an opportunity for gain, he thinks only of his duty.

Quotes from the same author

The superior man understands what is right; the inferior man understands what will sell.
To be wronged is nothing unless you continue to remember it.
Wisdom, compassion, and courage are the three universally recognized moral qualities of men.
If you look into your own heart, and you find nothing wrong there, what is there to worry about? What is there to fear?
Study the past, if you would divine the future.