It was the German schoolhouse which destroyed Napoleon III. France, since then, is making monster cannon and drilling soldiers still, but she is also building schoolhouses. As long as war is possible, anything that makes better soldiers people want.
The greatest competitor of devotion to Jesus is service to Him. It is never 'Do, do' with the Lord, but 'Be, be' and He will 'do' through you. The only way to keep true to God is by a steady persistent refusal to be interested in Christian work and to be interested alone in Jesus Christ.