Ibn Hazm al-Andalusi (May Allah have mercy upon him)

I like this quote a lot, so I have used it twice!

Ibn Hazm al-Andalusi (May Allah have mercy upon him) said, "If you look deeply into worldly matters you will become melancholy and will end up reflecting upon the ephemeral nature of everything here below, and the fact that truth lies only in striving for the hereafter, since every ambition to which you might cling will end in tears; either the goal is snatched from you, or you have to give the attempt up before you reach it. One of these two endings is inevitable except the search for God the Almighty the Powerful. Then the result is always joy, both immediate and eternal. The immediate joy is because you stop worrying about things which usually worry people; this leads to an increase in the respect paid to you by friends and enemies alike. The eternal joy is the joy of paradise." In pursuit of virtue.