‘Abdu’l-Bahá returned to the same theme the next day when speaking about the peace conference: Once I wrote the Persian friends that if the workers of peace conferences do not apply in their own lives what they advocate, they are like those wine sellers, who convene and make emphatic speeches regarding the harmfulness of wine and proposing its prohibition. But when they go out of the meeting, they begin again to sell wine and to do what they were doing in the past. Therefore it is necessary for the power of execution in effect to spiritually penetrate the body of the world.