Eyes and ears are poor witnesses to people if they have uncultured souls.
It is hard to contend against one's heart's desire; for whatever it wishes to have it buys at the cost of soul.
You won't discover the limits of the soul, however far you go.
You may travel far and wide but never will you find the boundaries of the soul.
A dry soul is wisest and best.
If you went in search of it, you would not find the boundaries of the soul, though you traveled every road-so deep is its measure [logos].