The wiser a man is, the less talkative will he be.

If you are greeted then return the greetings more warmly. If you are favored, then repay the obligation manifold; but he who takes the initiative will always excel in merit.

The word of God is the medicine of the heart.

Silence is the garden of thought.

Always consider your intellect to be lacking; otherwise too much faith in it surely leads to error.

There is no capital more useful than intellect and wisdom, and there is no indigence more injurious than ignorance and unawareness.

He who busies himself with things other than improvement of his own self becomes perplexed in darkness and entangled in ruin. His evil spirits immerse him deep in vices and make his bad actions seem handsome.