Consider what you have in the smallest well-chosen library-a company of the wisest and wittiest men which can be plucked out of all civilized countries in a thousand years. The men themselves were then hidden and inaccessible. They were solitary, impatient of interruption, and fenced by etiquette. But now they are immortal, and the thought they did not reveal, even to their bosom friends, is here written out in transparent words of light to us, who are strangers of another age.
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 exists outside our modern economy of scarcity... It's not about apportioning vanishing resources of time and energy. Friendship is a blessed relic of the ancient economy of the gift, and the time freely given to people dear to you actually creates magical abundance.