human
What a mighty power is stored up in this little lever. On the contrary, our attention would be fixed on the piston and the steam at the back of it, and on the laws which govern its production, expansion, and condensation. And we need scarcely say that there is not much in common between those who regard prayer simply as an emotional safety-valve, and those who look upon it as one of the great moving forces of the spiritual world. It happens often enough that there are forces in the world of which people generally are ignorant, or of which they have an idea that is totally inadequate. As, for instance, we have known cynical politicians deride the expression of public opinion, as being only valuable as a political safety-valve, and useful to keep the