ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
sleepless: P. and V. ἄγρυπνος, V. ἄϋπνος (also Plato but rare P.).
cautious: P. εὐλαβής, προμηθής; see cautious.