Knowledge is better than wealth; knowledge protects you, while you protect wealth. Wealth lessens as it is spent, while knowledge grows as it is spent.
العلم خير من المال، العلم يحرسك وأنت تحرس المال، والمال تنقصه النفقة والعلم يزكو على الإنفاق
El-ilmu hayrun mine'l-mâl; el-ilmu yahrusüke ve ente tahrusü'l-mâl; ve'l-mâlu tenkusuhu'n-nafaka ve'l-ilmu yezkû ale'l-infâk
Hazrat Ali, Nahj al-Balagha, saying 147 (Subhi Salih edition, p. 495; saying 147 in the Abduh edition). Nahj al-Balagha is a compilation without chains of transmission by al-Sharif al-Radi (d. 1015).
You protect wealth.
Knowledge protects you.
Wealth lessens as you give it.
Knowledge grows as you give it.
When Hazrat Ali says this to Kumayl,
he likens hearts to vessels.
The best of them is the one that holds the most.
As the vessel widens,
what is given grows too.