When a mean wretch cannot vie with another in virtue, out of his wickedness he begins to slander. The abject envious wretch will slander the virtuous man when absent, but when brought face to face his loquacious tongue becomes dumb.

Whoever acquires knowledge but does not practice it is as one who ploughs but does not sow.

The heart is like a musical instrument of many strings, all the chords of which require putting in harmony.

That which is not allotted the hand cannot reach; what is allotted you will find wherever you may be.

He who learns, and makes no use of his learning, is a beast of burden with a load of books. Does the ass comprehend whether he carries on his back a library or a bundle of faggots?

If thou art wise, incline to truth; for truth, not the semblance, remains in its place.

A man of virtue, judgment, and prudence speaks not until there is silence.