‘I thought of you as I stood on the soft green slope down to the water, and looked on the bright little stream, with its white foam sparkling in the sunlight. How much of its beauty it owes to the pebbles that fret it; and how much of its rapidity to the fall in its course. But in our lives, how we--at least I--shrink from the pebbles! How we would fain have all glassy smooth,--though Nature itself teaches us that then it would become stagnant. The “sea of glass” is for another world....