ي ُصَدَّقُ السّاذَجُ كُلَّ شَيْءٍ، وَأمّا الذَّكِيُّ فَيَنْتَبِهُ إلَى ما يَعْمَلُهُ.
The one who is easy to fool believes everything, but the wise man looks where he goes.