You become what you give your attention to…If you yourself don’t choose what thoughts and images you expose yourself to, someone else will, and their motives may not be the highest.
– Epictetus

Don’t be concerned with other people’s impressions of you. They are dazzled and deluded by appearances. Stick with your purpose. This alone will strengthen your will and give your life coherence.
– Epictetus

Be careful whom you associate with. It is human to imitate the habits of those with whom we interact. We inadvertently adopt their interests, their opinions, their values, and their habit of interpreting events.

– Epictetus