1. Do not praise anyone until you test him
Nor blame him without testing 
١. لا تَحمدَنَّ امرءً حَتّى تُجَرِّبَهُ
 وَلا تَذُمَنَّهُ مِن غَيرِ تَجريبِ
2. Your praise of a man whom excess has not reached 
And your blame of a man after praise is a lie 
٢. فَحَمدُكَ المَرءَ ما لَم تَبلُهُ سَرَفٌ
 وَذَمُّكَ المَرءَ بَعدَ الحَمدِ تَكذيبُ