Knoweldge spreads only when you share it. and
"Gaining knoweldge is obligtory on every muslim" (Ibn Majah 1/224 & Tirmidhi 218).

Abdullah Bin `Amr (Radhiallahu anhu) narrated that according to Jabir Bin Abdullah (Radhiallahu anhu) the Prophet (Sallallahu ‘alayhi wa sallam) said, “…I have left among you the Book of Allah, and if you hold fast to it, you would never go astray…” (Muslim 2803.1)

Abu Hurairah (radhiallahu anhu) narrated that Allah’s Messenger (Sallallahu ‘alayhi wa sallam) said, “…He who treads the path in search of knowledge, Allah will make that path easy, leading to Paradise for him. And those persons who assemble in one of the houses of Allah (mosques), recite the Book of Allah and learn and teach the Qur'an (among themselves), there will descend upon them tranquility, mercy will cover them. The angels will surround them and Allah will mention them in the presence of those near Him. He who is slow-paced in doing good deeds, his (long) descent does not make him go ahead.” (Muslim 6518)