When I remember that I am part of this universe, I won't be upset by what happens. And since I'm connected to other people who share my nature, I'll be careful not to harm the community. In all my choices, I'll think of my fellow humans first. I'll aim for the common good and try to prevent anything that works against it. Once you accept these ideas, think of this: you would call a citizen happy if he always worked for his fellow citizens' benefit, and if the city treated him well in return. In the same way, you will live a happy life.
As then I bear in mind that I am a part of such an universe, I shall not be displeased with anything that happens. And as I have relation of kindred to those parts that are of the same kind and nature that I am, so I shall be careful to do nothing that is prejudicial to the community, but in all my deliberations shall they that are of my kind ever be; and the common good, that, which all my intentions and resolutions shall drive unto, as that which is contrary unto it, I shall by all means endeavour to prevent and avoid. These things once so fixed and concluded, as thou wouldst think him a happy citizen, whose constant study and practice were for the good and benefit of his fellow citizens, and the carriage of the city such towards him, that he were well pleased with it; so must it needs be with thee, that thou shalt live a happy life.