Note 3 — CANTO XXIV.
Charles Eliot Norton translation
The argument is as follows: The things of the spiritual world having no visible existence upon earth, the hope of blessedness rests only on belief unsupported by material proof; this belief is Faith, and since on it alone are the high hopes founded, it is properly called their substance, that is, their essential quality. And since all our reasoning concerning spiritual things must be drawn not from visible things, but from the convictions of Faith, our faith is also properly called evidence.