ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you
Ar. and P. μαλακῶς, Ar. and V. μαλθακῶς.
gently: P. and V. ἠπίως; see gently.
lovingly: P. and V. φιλοφρόνως (Plato), V. φίλως.