“I began to reflect on Nature's eagerness to sow life everywhere, to fill the planet with it, to crowd with it the earth, the air, and the seas. Into every corner, into all forgotten things and nooks, Nature struggles to pour life, pouring life into the dead, life into life itself. That immense, overwhelming, relentless, burning ardency of Nature for the stir of life! And all these her creatures, even as these thwarted lives, what travail, what hunger and cold, what bruising and slow-killing struggle will they not endure to accomplish earth's purpose? and what conscious resolution of men can equal their impersonal, their congregate will to yield self life to the will of life universal?”