As-Salaam alaikum,
"True knowledge comes of 3 things:-- a tongue which repeats the name of Allah, a heart which is greatful, and a patient body. A body which is not abstinent, is like a tree which bears no fruit, a body without shame is like a stew without salt, a body which makes no effort is like a useless slave".

"He who seeks worldly wealth cannot dispense with commerce and profit, he who seeks that of future life cannot dispense with Obedience and Service, he who seeks the Master cannot avoid tests and suffering".

"Supplication takes away shame, pride drives out religion. A greedy man has the nature of the devil.."
Source:-- 'The Whirling Ecstasy', by
Aflaki.