when one does set about the pursuit of what is in one’s own power, i.e. the state of one’s soul, it should be done ex hapantos, with all one’s effort, that is without reservation
Epictetan Stoicism prescribes unconditional, unreserved pursuit exclusively for what is genuinely within one’s power — virtue and the soul’s state — while all external indifferents must be pursued only conditionally.
, Ethics and Human Action in Early Stoicism, 1985thesis