It is narrated from the first Shia Imam, Ali ibn Abitaleb (AS) who said:

The strength of the world depends on four kinds of individuals.

1. The scholar who acts upon his/her knowledge.
2. The ignorant who does not avoid learning.
3. The wealthy who gives to the poor from his/her wealth.
4. The poor who does not sell his/her religion to his/her world.

Therefore, when all the above-mentioned cases are acted upon in a society, that society is a strong one [1].

[1] Qorarul Hekam, Vol. 2, Page 542.

Source: en.shafaqna.com