“May I be no man’s enemy,
and may I be the friend of that which is eternal and abides.
May I never quarrel with those nearest me:
and if I do, may I be reconciled quickly.
May I love, seek, and attain only that which is good.
May I wish for all men’s happiness and envy none.
May I never rejoice in the ill-fortune of one who has wronged me.
When I have done or said what is wrong,
may I never wait for the rebuke of others,
but always rebuke myself until I make amends.
May I win no victory that harms either me or my opponent.
May I reconcile friends who are angry with one another.
May I never fail a friend who is in danger.
When visiting those in grief may I be able by gentle and healing words to soften their pain.
May I respect myself.
May I always keep tame that which rages within me.
May I accustom myself to be gentle,
and never be angry with people because of circumstances.
May I never discuss who is wicked and what wicked things he has done,
but know good men and follow in their footsteps.”

(Eusebius of Caesarea, also known as Eusebius Pamphili, was a historian of Christianity, exegete, and Christian polemicist. He became the bishop of Caesarea Maritima about 314 AD. Together with Pamphilus, he was a scholar of the Biblical canon and is regarded as one of the most learned Christians of his time. – Wikipedia)