The rule of friendship means there should be mutual sympathy between them, each supplying what the other lacks and trying to benefit the other, always using friendly and sincere words.
Love between man and man is impossible because there must not be sexual intercourse and friendship between man and woman is impossible because there must be sexual intercourse.
He that wrongs a friend Wrongs himself more, and ever bears about A silent court of justice in his breast, Himself the judge and jury, and himself The prisoner at the bar ever condemned.
When you part from your friend, you grieve not; For that which you love most in him may be clearer in his absence, as the mountain to the climber is clearer from the plain.