The importance of this duty concerns this class; that is, the clergy, the university professors and students. These two groups constitute the thinkers of society; they are the thinkers. You are the two groups—the university students, whether those who have passed out from university and are now lawyers, legal experts or whatever, or whether of the clerical class who are still studying, or have finished their studies and are engaged in disseminating the faith and in other activities—in society that are the thinkers. And you are the ones that are able to neutralize the plots that are about to be hatched with utmost thoroughness for the purpose of defeating this movement. You two groups have a greater duty than the others, and your responsibility, too, is very great. All the people bear a responsibility, but yours is very great. And now they intend to create discord between you, the two groups that had become united and there was no more talk of the clergy and the university being like this and like that. All of you were together and succeeded, thanks to God, and understood that unity brings success. When you (two groups) the thinkers, came together, the other strata of the people joined you. It is your duty, and also that of the clergy and the university staff, to maintain your unity.
Sahifeh-ye-Imam, V 8, P 402