φύγωμεν οὖν τὴν συνήθειαν ... ἄγχει τὸν ἄνθρωπον, τῆς ἀληθείας ἀποτρέπει → so let's stay away from the habitual ... it strangles us, turns us away from the truth
inf. ao. de ἄρχω.
ἄρξαι: inf. aor. к ἄρχω.