"The child loves naturally the manifestations of life: Mrs. Latter tells us how easily little ones are interested even in earthworms and in the movement of the larvae of insects in manure, without feeling that horror which we, who have grown up isolated from nature, experience towards certain animals."
"But when it comes to the innovation of entirely new structures (‘‘morphological novelties’’) such as segmentally organized bodies (seen in earthworms, insects, and vertebrates such as humans, but not jellyfish or molluscs), or the hands and feet of tetrapods (vertebrates with four limbs), Darwin’s mechanism comes up short."
"Of limbless animals, some progress by undulations (and this happens in two ways, either they undulate on the ground, like snakes, or up and down, like caterpillars), and undulation is a flexion; others by a telescopic action, like what are called earthworms and leeches."
"I was walking above the dwellings of those lowly beings called earthworms, the subject of his last work, in which Darwin showed once more how little causes in the long run produce great effects."