Give yourself fully to your endeavors. Decide to construct your character through excellent actions and determine to pay the price of a worthy goal. The trials you encounter will introduce you to your strengths.

Nothing outside the will can hinder or harm the will; it can only harm itself. If then we accept this, and, when things go amiss, are inclined to blame ourselves, remembering that judgment alone can disturb our peace and constancy, I swear to you by all the gods that we have made progress.

Men are not troubled by things themselves, but by their thoughts about them

Men are disturbed not by the things that happen, but by their opinion of the things that happen.

It is not death or pain that is to be dreaded, but the fear of pain or death.

When a man is proud because he can understand and explain the writings of Chrysippus, say to yourself, 'if Chrysippus had not written obscurely, this man would have had nothing to be proud of.'

Getting distracted by trifles is the easiest thing in the world… Focus on your main duty