It is not what we learn in conversation that enriches us. It is the elation that comes of swift contact with tingling currents of thought. It is the opening of our mental pores, and the stimulus of marshaling our ideas in words, of setting them forth as gallantly and as graciously as we can.
Bio: Rudolf Walter Ladenburg was a German atomic physicist. He emigrated from Germany as early as 1932 and became a Brackett Research Professor at Princeton University.
