Some signs of understanding are: clemency, knowledge, and silence. Silence is one of the doors to wisdom. It brings about love and is evidence for all good.
Wisdom and intellect is every man's friend, ignorance and illiteracy are his enemies.
For the Devil, the presence of learned one is by far more painful than a thousand worshipers.
He who takes himself to account gets benefitted, and the one who gets negligent and careless about himself bears loss. The one who fears (Allah) becomes peaceful, and the one who takes lesson becomes most clear sighted and discerning. He who becomes most clear sighted, understands; and he who understands and comprehends becomes knowledgeable and informed.
Everyone's friend is his reason; his enemy is his ignorance.
The best wealth is the one by which the honour of man is protected.
Assisting the weak is better for you than your act of charity.
Silence is a door among the doors of wisdom - indeed, silence begets and attracts love, it is the proof of all the beneficiences.