إِنَّهُ لَيْسَ شَيْءٌ بِشَرٍّ مِنَ الشَّرِّ إِلاَّ عِقَابُهُ، وَلَيْسَ شَيْءٌ بِخَيْر مِنَ الْخَيْرِ إِلاَّ ثَوَابُهُ، وَكُلُّ شَيْء مِنَ الدُّنْيَا سَمَاعُهُ أَعْظَمُ مِنْ عِيَانِهِ، وَكُلُّ شَيْء مِنَ الاْخِرَةِ عِيَانُهُ أَعْظَمُ مِنْ سَمَاعِهِ، فَلْيَكْفِكُمْ مِنَ الْعِيَانِ السَّمَاعُ، وَمِنَ الْغَيْبِ الْخَبَرُ. وَاعْلَمُوا أَنَّ مَا نَقَصَ مِنَ الدُّنْيَا وَزَادَ في الاْخِرَةِ خَيْرٌ مِمَّا نَقَصَ مِنَ الاْخِرَةِ وَزَادَ فِي الدُّنْيَا: فَكَمْ مِنْ مَنْقُوص رَابح وَمَزِيد خَاسِر!
Certainly nothing is viler than evil except its punishment, and nothing is better than good except its reward. In this world everything that is heard is better than what is seen, while of everything of the next world that is seen is better than what is heard. So you should satisfy yourself by hearing rather than seeing and by the news of the unknown. You should know that what is little in this world but much in the next is better than what is much in this world but little in the next. In how many cases little is profitable while much causes loss.