αἲ γὰρ δὴ οὕτως εἴη

From LSJ

ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν → love your neighbor as yourself, thou shalt love thy neighbour as thyself, love thy neighbour as thyself

Source

Russian (Dvoretsky)

Hom. о, если бы так вышло!