Truth is born into this world only with pangs and tribulations, and every fresh truth is received unwillingly.

Modification of form is admitted to be a matter of time

In my solitude I have pondered much on the incomprehensible subjects of space, eternity, life and death.

As well might it be said that, because we are ignorant of the laws by which metals are produced and trees developed, we cannot know anything of the origin of steamships and railways

The white men in our colonies are too frequently the savages

There is a tendency in nature to the continued progression of certain classes of varieties further and further from the original type.

In less than eight years "The Origin of Species" has produced conviction in the minds of a majority of the most eminent living men of science. New facts, new problems, new difficulties as they arise are accepted, solved, or removed by this theory; and its principles are illustrated by the progress and conclusions of every well established branch of human knowledge.