"... A learned man who is not abstemious"

Sa'dee Al-Shirazee writes in his Gulistan:

عام نادان پریشان روزگار به ز دانشمند ناپرهزیرگار کان به نابینایی از راه اوفتاد
وین دوچشمش بود و در چاه اوفتاد

ENGLISH:

"It is better to be an ignorant poor fellow then a learned man (who knows what is good and bad) who is not abstemious; because the former loses the way by his blindness, while the latter falls into a well with both eyes open".

NEDERLANDS:

"Het is beter om onwetend te zijn dan iemand die weet en vervolgens zijn begeerten niet bedwingt, want de eerste raakt zijn weg kwijt omdat hij blind is, terwijl de tweede met beide ogen wijd open in de put valt!"

["Gulistane Sa'dee", 293].