Body is purified by water. Ego by tears. Intellect is purified by knowledge. And soul is purified with love.
Ali ibn Abi TalibWhoever educates himself and improves his own morals & character is superior to the man who tries to teach & train others.
Ali ibn Abi TalibDo 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.
Ali ibn Abi Talib