Take account of yourselves before you are brought to account.
May Allah have mercy on him who sends me my faults as a present.
To forgive an oppressor is oppression upon the oppressed.
Don't forget your own self while preaching to others.
Seek knowledge and teach it to people. Learn dignity and tranquillity, and be humble towards those from whom you learn knowledge and be humble towards those to whom you teach it, and do not be tyrannical scholar otherwise your knowledge cannot be established because of your tyranny.
Praise Allah, for by praise His blessings multiply.