It is reported that Wahb b. Munabbih - Allâh have mercy on him - said:

A scholar once asked another greater than him in knowledge,

"How much should I build?" He replied,

"As much as shelters you from the sun and the rain."

He asked, "How much food should I eat?" He replied, "

More than what keeps you hungry and less than what makes you full."

He asked, "How much should I wear?" He replied,

"As the Messiah (Jesus) did."

He asked, "How much should I laugh?" He replied,

"As much as appears on your face but does not make audible your voice."

He asked, "How much should I cry?" He replied,

"Never tire from crying out of the fear of Allâh."

He asked, "How much should I hide my deeds?" He replied,

"Until people think you had not done a good deed."

He asked, "How much should I make public my deeds?" He replied,

"As much as will let the keen follow your example but not have the people talk about you."

Wahb said.

"Everything has two ends and a middle. If you grab one end, the other will slant, but if you take the middle, both ends will balance. Stick to the balanced middle in all affairs."

Source: Abû Nu'aym, Hilyatu Al-Awliyâ` 4:45.