Neither in thy actions be sluggish nor in thy conversation without method, nor wandering in thy thoughts, nor let there be in thy soul inward contention nor external effusion, nor in life be so busy as to have no leisure.

No longer talk at all about the kind of man that a good man ought to be, but be such

It doesn't hurt me unless I interpret its happening as harmful to me. I can choose not to.

Do not act as if you were going to live ten thousand years. Death hangs over you. While you live, while it is in your power, be good.

If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.

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.

The noblest kind of retribution is not to become like your enemy.