1. لا تَحمدَنَّ امرءً حَتّى تُجَرِّبَهُ

    وَلا تَذُمَنَّهُ مِن غَيرِ تَجريبِ

    Never praise a man until you have tested him,

    and never censure him without testing him.

  2. فَحَمدُكَ المَرءَ ما لَم تَبلُهُ سَرَفٌ

    وَذَمُّكَ المَرءَ بَعدَ الحَمدِ تَكذيبُ

    For praising a man before testing him is excessive,

    and censuring him after praise is self-contradiction.