Do not share the knowledge with which you have been blessed with everyone in general, as you do with some people in particular; and know that there are some men in whom Allah, may He he glorified, has placed hidden secrets, which they are forbidden to reveal.
There is no nobility with bad manners.
Surely silence can sometimes be the most eloquent reply.
Of all the follies the greatest is to love the world.
The wiser a man is, the less talkative will he be.
Loving one another is half of wisdom.