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
P. and V. πρόσχημα, τό, πρόβλημα, τό, σχῆμα, τό.
excuse: P. and V. πρόφασις, ἡ, σκῆψις, ἡ.
pretending: P. προσποίησις, ἡ.