Only a word in reply to your letter as to your boys. It is of importance that boys growing up, though yours are somewhat young for this, should have companions: the heart grows with the body. Also it is important that they should have exercise. The important point is that their companions should be desirable ones: if they are strongly attached to such, mere companionship for games for exercise is not of much consequence—still always to be feared. If your boys have young friends enough to give zest to their walks and excursions, and any other things that are good for bodily and even mental development, it is enough, but young ones (not exactly children) must have opportunity to let their hearts out freely. It is of all importance; and salutary companionship of all moment. It is of the last importance for parents to get this through God's mercy into a right channel.
Your affectionate brother in Christ.
Elberfeld,
June 25th, 1874.