Now as there are, according to Humboldt, one hundred and seventy words in common between the languages of the new and old continents, and many of the… - Robert Chambers

Is our race but the initial of the grand crowning type? Are there yet to be species superior to us in organization, purer in feeling, more powerful in device and act, and who shall take a rule over us! There is in this nothing improbable on other grounds. The present race, rude and impulsive as it is, is perhaps the best adapted to the present state of things in the world; but the external world goes through slow and gradual changes, which may leave it in time a much serener field of existence. There may then be occasion for a nobler type of humanity, which shall complete the zoological circle on this planet, and realize some of the dreams of the purest spirits of the present race.

The scientific skepticism of our age professes to spring from a sense of the extreme fallaciousness of the human senses, and the liability besetting us all to deceive ourselves into a belief which gratifies the faculty of wonder. It is held as a rare and valuable gift to be able to observe a fact correctly. We are pathetically told that what a man thinks he saw, is often a mere hypothesis of his imagination as to what he saw, and may be wholly wrong.

It has been among the visions of some dreaming philosophers that human life is capable of almost indefinite extension. The great Condorcet was one of these. He thought that by the removal of the two causes of evil—poverty and superfluity—by destroying prejudices and superstitions, and by various other operations, which he considered the purification of mankind, but which other people would call their pollution, the approach of death would by degrees be farther and farther indefinitely protracted. It is desirable that the practical views entertained by sanitary reformers should be kept widely distinct from any such theories, the character of which has been well drawn by Malthus when he says—"...Though I may not be able in the present instance to mark the limit at which further improvement will stop I can very easily mention a point at which it will not arrive."