Let it be your constant method to look into the design of people's actions, and see what they would be at, as often as it is practicable; and to make this custom the more significant, practice it first upon yourself.

Remember that all things are only opinion and that it is in your power to think as you please.

Nothing that goes on in anyone else's mind can harm you.

Everything harmonizes with me, which is harmonious to thee, o Universe. Nothing for me is too early or too late, which is in due time for thee.

The universe is transformation: life is opinion.

How many after being celebrated by fame have been given up to oblivion; and how many who have celebrated the fame of others have long been dead.

From the philosopher Catulus, never to be dismissive of a friend's accusation, even if it seems unreasonable, but to make every effort to restore the relationship to its normal condition.