Shaykh Hamza Yusuf's Khutbah is on how to take care of our selves properly in the current state of the Muslim Ummah. We need to have a constant reminder on the reality of the situation of the Muslim Ummah and how we can improve this situation.
The Messenger of Allah (sal Allahu alaihi wa sallam) said: "The thing I fear most for my Ummah is the eloquent hypocrite." [Ahmad]
Knowledge does not refer to plenty of information; rather, knowledge is a light that Allah puts into the heart of a true believer.
-Imām Mālik
Abu Hurayra reported that the Messenger of Allah, (PBUH), said, "This world is the prison of the believer and the paradise of the unbeliever." [Muslim]
"Whosoever sees an evil action, let him change it with his hand; and if he is not able to do so, then with his tongue; and if he is not able to do so, then with his heart -- and that is the weakest of faith." Hadith in al-Bukhari