Yoonus ibn ‘Ubayd (d.139H) – rahimahullaah -said:
“With good manners you understand the knowledge. With the knowledge your actions are corrected. With actions wisdom is obtained. With wisdom you understand zuhd (abstinence) and are granted its benefits. With zuhd comes abandoning the world. With abandoning the world comes desire for the Hereafter. With desire for the Hereafter the pleasure of Allaah – the Mighty and Majestic – is obtained.”
Iqtidaa’ul-‘llmil-‘Aml (no.31)
Daily Islamic Benefits 