العِلمُ رَأسُ الخَيرِ كُلِّهِ ، والجَهلُ رَأسُ الشَّرِّ كُلِّهِ.

Knowledge is the root of all good, whereas ignorance is the root of all evil.

Bihar al-Anwar, v. 77, p. 175, no. 9