In this Day whatsoever serveth to reduce blindness and to increase vision is worthy of consideration. This vision acteth as the agent and guide for true knowledge. Indeed in the estimation of men of wisdom keenness of understanding is due to keenness of vision. The people of Bahá must under all circumstances observe that which is meet and seemly and exhort the people accordingly.
Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas