In the sphere of human relations, he will hold himself to certain attitudes which eradicate the negative tendencies in him and stimulate the positive. When thrown among those who do wrong and practise evil, he will not fall into anger, hatred, resentment, or bitterness, but will use the occasion to rise into patience, detachment, or indifference, knowing that such persons will sometime and somewhere infallibly receive the painful return of what they have given out. When, on the contrary, he is brought into the company of those who do right and practise virtue, he will rejoice in their goodness and be glad to witness their conduct. When he finds himself among those suffering misfortune he will pity, and when among those enjoying good fortune he will feel no envy.
-- Notebooks Category 6: Emotions and Ethics > Chapter 5: Spiritual Refinement > # 79