وَقَالَ (عليه السلام):
Amir al-mu'minin, peace be upon him, said:
الدُّنْيَا دَارُ مَمَرٍّ لَا دَارُ مَقَرٍّ
This world is a place for transit, not a place for stay.
وَ النَّاسُ فِيهَا رَجُلَانِ
The people herein are of two categories.
رَجُلٌ بَاعَ فِيهَا نَفْسَهُ
One is the man who sold away his self (to his passions)
فَأَوْبَقَهَا
and thus ruined it,
وَ رَجُلٌ ابْتَاعَ نَفْسَهُ
and the other is the man who purchased his self (by control against his passions)
فَأَعْتَقَهَا.
and freed it.