Do not associate with evil companions;
do not seek the fellowship of the vile.
Associate with the good friends;
seek the fellowship of noble men.

- DhammaPada Verse 78

Related Teachings:

1. Cultivating faith to awaken to the truth ↗️ - Association with good people is the first of the four factors that leads one to awaken to the truth of enlightenment, also known as stream entry in the Buddha's teachings.
2. A teaching on the moral law of attraction ↗️ - As one changes their associations, they also change their tendencies. Vice-versa, as one changes their tendencies, their associations will change.
3. Who not to associate with - The Buddha shares a teaching on who not to associate with, who to regard with equanimity, and who to associate with.