ὑπὸ δὲ τῆς φιλαυτίας παρηγμένοι ἄλογα φασὶν τὰ ζῷα ἐφεξῆς τὰ ἄλλα σύμπαντα → it is self-love which leads them to say that all the other animals without exception are non-rational
singular: P. and V. σύ.
plural: P. and V. ὑμεῖς.
you there: Ar. and V. οὗτος σύ, οὗτος.