ὕδωρ δὲ πίνων οὐδὲν ἂν τέκοι σοφόν → by drinking water you would never create anything great
elegantly: Ar. and P. κομψῶς; see elegantly.
stepping daintily with milk-white foot: V. ἁβρὸν βαίνουσα παλλεύκῳ ποδί (Eur., Medea 1164).