Regarding this activity, the book Dynamic Religious Movements says: “It would be difficult to find members of any other group who work as hard at their religion as do the Witnesses. ”
Seoses selle tegevusega ütleb raamat Dynamic Religious Movements: „Oleks raske leida ühegi teise rühmituse liikmeid, kes töötavad nii hoolsalt oma religiooni kallal kui tunnistajad. ”