Epistle to the Son of the Wolf — Paragraph 48

In the third Tajallí (effulgence) of the Book of Tajallíyát (Book of Effulgences) We have mentioned: "Arts, crafts and sciences uplift the world of being, and are conducive to its exaltation. Knowledge is as wings to man's life, and a ladder for his ascent. Its acquisition is incumbent upon everyone. The knowledge of such sciences, however, should be acquired as can profit the peoples of the earth, and not those which begin with words and end with words. Great indeed is the claim of scientists and craftsmen on the peoples of the world. Unto this beareth witness the Mother Book in this conspicuous station."