372. Amir al-mu'minin, peace be upon him, said to Jabir ibn 'Abdullah al-Ansari': O Jabir, the mainstay of religion and the world are four persons: The scholar who acts on his knowledge; the ignorant who does not feel ashamed of learning; the generous who is not niggardly in his favours; and the destitute who does not sell his next life for his worldly benefits. Consequently, when the scholar wastes his knowledge, the ignorant feels shame in learning; and when the generous is niggardly with his favours, the destitute sells his next life for the worldly benefits.