When we consider we are bound to be serviceable to mankind, and bear with their faults, we shall perceive there is a common tie of nature and relation between us.

Let every action aim solely at the common good.

Live your life as if you are ready to say goodbye to it at any moment, as if the time left for you were some pleasant surprise.

If you are pained by external things, it is not they that disturb you, but your own judgement of them. And it is in your power to wipe out that judgement now.

When you are annoyed at someone's mistake, immediately look at yourself and reflect how you also fail; for example, in thinking that good equals money, or pleasure, or a bit of fame. By being mindful of this you'll quickly forget your anger, especially if you realize that the person was under stress, and could do little else. And, if you can, find a way to alleviate that stress.

A man should always have these two rules in readiness. First, to do only what the reason of your ruling and legislating faculties suggest for the service of man. Second, to change your opinion whenever anyone at hand sets you right and unsettles you in an opinion, but this change of opinion should come only because you are persuaded that something is just or to the public advantage, not because it appears pleasant or increases your reputation.

Keep constantly in mind in how many things you yourself have witnessed changes already. The universe is change, life is understanding.