و درود خدا بر او فرمود: هر ظرفی با ریختن چیزی در آن پر می شود جز ظرف دانش که هر چه در آن جای دهی، وسعتش بیشتر می شود. Amir al-Mu'minin, peace be upon him, said: Every container gets narrower according to what is placed in it except knowledge which expands…

وَ قَالَ (عليه السلام): كُلُّ وِعَاءٍ يَضِيقُ بِمَا جُعِلَ فِيهِ إِلَّا وِعَاءَ الْعِلْمِ فَإِنَّهُ يَتَّسِعُ بِهِ

Amir al-Mu'minin, peace be upon him, said: Every container gets narrower according to what is placed in it except knowledge which expands instead.

Source: Nahj al-Balagha, compiled by al-Sharif al-Radi. Persian: ترجمه محمد دشتی (Mohammad Dashti). English: Translation by Sayed Ali Reza (letters, sayings and sermons 1–16). Text from github.com/WWGTX/NahjulBalaghah. · Free for non-commercial religious use, with attribution