For my own part I am persuaded that everything advances by an
unchangeable law through the eternal constitution and read more

For my own part I am persuaded that everything advances by an
unchangeable law through the eternal constitution and association
of latent causes, which have been long before predestined.
[Lat., Equidem aeterna constitutione crediderim nexuque causarum
atentium et multo ante destinatarum suum quemque ordinem
immutabili lege percurrere.]

The expression often used by Mr. Herbert Spencer of the Survival
of the Fittest is more accurate, and is read more

The expression often used by Mr. Herbert Spencer of the Survival
of the Fittest is more accurate, and is sometimes equally
convenient.

While the rest of the species is descended from apes, redheads are descended from cats.

While the rest of the species is descended from apes, redheads are descended from cats.

Today, the theory of evolution is an accepted fact for everyone but a fundamentalist minority, whose objections are based not read more

Today, the theory of evolution is an accepted fact for everyone but a fundamentalist minority, whose objections are based not on reasoning but on doctrinaire adherence to religious principles

A fire-mist and a planet,
A crystal and a cell,
A jellyfish and a saurian,
read more

A fire-mist and a planet,
A crystal and a cell,
A jellyfish and a saurian,
And caves where the cavemen dwell;
Then a sense of law and beauty,
And a face turned from the clod--
Some call it Evolution,
And others call it God.

Observe constantly that all things take place by change, and
accustom thyself to consider that the nature of the read more

Observe constantly that all things take place by change, and
accustom thyself to consider that the nature of the Universe
loves nothing so much as to change the things which are, and to
make new things like them.

Evolution ever climbing after some ideal good
And Reversion ever dragging Evolution in the mud.

Evolution ever climbing after some ideal good
And Reversion ever dragging Evolution in the mud.

Most species do their own evolving, making it up as they go along, which is the way Nature intended. And read more

Most species do their own evolving, making it up as they go along, which is the way Nature intended. And this is all very natural and organic and in tune with mysterious cycles of the cosmos, which believes that there’s nothing like millions of years of really frustrating trial and error to give a species moral fiber and, in some cases, backbone.

And hear the mighty stream of tendency
Uttering, for elevation of our thought,
A clear sonorous voice, read more

And hear the mighty stream of tendency
Uttering, for elevation of our thought,
A clear sonorous voice, inaudible
To the vast multitude.