To weld the theory of soul-transmigration to the reality of evolution was an inspiration that, coming to Langdon Smith in the midst of a busy life, nevertheless sung itself into his heart with a wealth of poetic meaning and suggestion that found its ultimate expression in verses which so securely link his name with those whom no passing moment can plunge into obscurity. … The crowning glory of "Evolution" is, perhaps, the manner in which he interwove throughout his masterpiece of imagination a golden thread of romance that becomes more and more lustrous as the story unfolds. He linked inseparably physical life and spiritual life, the so-called vital and eternal sparks, as, into the web of the lives that evolve, he wove the woof of love and brought them down through the ages as one.
Langdon Smith