to thine own self be true

(idiomatic) to bear in mind

always

己: (derogatory) son of a bitch

己: (archaic) oneself / 己: (humble) I / 己: (derogatory) you (to a subordinate) / 己: (derogatory) you

hold, keep (to a limit), suffice / retain, keep, remain / detain, keep, retain

to act

action; behavior

reflexive pronoun: oneself / first-person pronoun: I, me / second-person pronoun: you

An interjection expressing anger or chagrin