Sidi Ahmed Al Zarruq (d.1492) He speaks as the Sufi masters of old…a tongue which no-one seems to understand today…

”Beware of being too harsh on your soul before you have gained mastery over it. But also beware of being lax with it in anything which concerns the sacred rulings. This is because [the soul] constantly flees form moderation in everything, and it inclines to extremism in both matters of deviance and guidance…

Work for this world as if you will live forever, but work for the next life as if you will die tomorrow…

If you desire to live such that your religion is safe and your portion is full and your honour is sound, guard your tongue and never mention another’s faults remembering that you yourself have faults and others have tongues.”

(Thanks to Sheikh Hamza Yusuf for the translation)