εὖ ποιεῖν
From LSJ
βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
Greek > English (Woodhouse)
benefit, do a favor, do a favour, do a good turn, do one a good turn, do service to, treat well, use well
