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.

The further the spiritual evolution of mankind advances, the more certain it seems to me that the path to genuine read more

The further the spiritual evolution of mankind advances, the more certain it seems to me that the path to genuine religiosity does not lie through the fear of life, and the fear of death, and blind faith, but through striving after rational knowledge.

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

Said the little Eohippus,
"I am going to be a horse,
And on my middle fingernails
read more

Said the little Eohippus,
"I am going to be a horse,
And on my middle fingernails
To run my earthly course!
. . . .
I'm going to have a flowing tail!
I'm going to have a mane!
I'm going to stand fourteen hands high
On the Psychozoic plain!"

I have called this principle, by which, each slight variation, if
useful, is preserved, by the term of Natural read more

I have called this principle, by which, each slight variation, if
useful, is preserved, by the term of Natural Selection.

Pouter, tumbler, and fantail are from the same source;
The racer and hack may be traced to one Horse;
read more

Pouter, tumbler, and fantail are from the same source;
The racer and hack may be traced to one Horse;
So men were developed from monkeys of course,
Which nobody can deny.

Civilization is a progress from an indefinite, incoherent
homogeneity toward a definite, coherent heterogeneity.

Civilization is a progress from an indefinite, incoherent
homogeneity toward a definite, coherent heterogeneity.

Children, behold the Chimpanzee;
He sits on the ancestral tree
From which we sprang in ages gone.
read more

Children, behold the Chimpanzee;
He sits on the ancestral tree
From which we sprang in ages gone.
I'm glad we sprang: had we held on,
We might, for aught that I can say,
Be horrid Chimpanzees to-day.

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.