Hicks: that courage is not a natural gift but comes from calculation of expediency;

Yonge: Courage is a quality which does not exist by nature, but which is engendered by a consideration of what is suitable.

Mensch: Courage does not come naturally but stems from a calculation of one's interest.

Original text: τὴν δὲ ἀνδρείαν φύσει μὴ γίνεσθαι, λογισμῷ δὲ τοῦ συμφέροντος:

• ἀνδρείαν = courage, bravery (of both men and women)

• συμφέροντος confer a benefit, be useful or profitable