But as the visibility of objects has its worth and meaning only in the fact that it informs us of their tangibility, so the whole worth of abstract knowledge always consists in its relation to what is perceived.
Nola objektuen ikuskortasunak bere balorea eta zentzua horien sentigarritasuna iragartzen duelako soilik daukan, horrela ezagutza abstraktuaren balore osoa begiesgarriarekiko bere harremanean datza beti.