Adapt yourself to the life you have been given; and truly love the people with whom destiny has surrounded you.

Look within. Within is the fountain of good, and it will ever bubble up, if thou wilt ever dig.

This is the chief thing: be not perturbed, for all things are according to the nature of the universal.

Keep in mind how fast things pass by and are gone - those that are now, and those to come. Existence flows past us like a river; the "what" is in constant flux, the "why" has a thousand variations. Nothing is stable, not even what's right here. The infinity of past and future gapes before us - a chasm whose depths we cannot see.

Which is recorded of Socrates, that he was able both to abstain from, and to enjoy, those things which many are too weak to abstain from, and cannot enjoy without excess. But to be strong enough both to bear the one and to be sober in the other is the mark of a man who has a perfect and invincible soul.

How ridiculous and how strange to be surprised at anything which happens in life

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