"It is to be kept in mind that the generations of men do not wait for the convenience of the church in respect to their evangelization. Men are born and die whether or not Christians are ready to give them the Gospel. And hence, if the church of any generation does not evangelize the heathen of that generation, those heathen will never be evangelized at all. It is always true in the work of evangelization that the present can never anticipate the future, and that the future can never replace the past. What is to be done in soul saving must be done by that generation."