empirically
From LSJ
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
English > Greek (Woodhouse)
adverb
to produce health and strength, not empirically, but on scientific principles: P. μὴ τριβῇ μόνον καὶ ἐμπειρίᾳ ἀλλὰ τέχνῃ… ὑγίειαν καὶ ῥώμην ἐμποιεῖν (Plato, Phaedrus 270B).