First and foremost, be faithful to your superiors, keep all promises, refuse the friendship of all who are not like you; and if you have made a mistake, do not be afraid of admitting the fact and amending your ways.
Friendship is but a name, faith is an empty name. Alas,
it is not safe to praise to a friend the object of your love;
as soon as he believes your praises, he slips into your place.
I don't think life offers any greater experience than the joyful sense of recognition when one finds in a new acquaintance a real friend, or when an old relationship deepens into friendship, or when one finds an old friendship intact despite the passage of years and many absences.
If ever there is tomorrow when we're not together... there is something you must always remember. You are braver than you believe, stronger than you seem, and smarter than you think. But the most important thing is, even if we're apart... I'll always be with you.
We poets would die of loneliness but for women, and we choose our men friends that we may have somebody to talk about women with. Letter to Olivia Shakespeare, 1936
Only be admonished by what you already see, not to strike leagues of friendship with cheap persons, where no friendship can be. Our impatience betrays us into rash and foolish alliances which no God attends.