To the mass of mankind religion of some kind is a necessity

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

Modification of form is admitted to be a matter of time

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

On the spiritual theory, man consists essentially of a spiritual nature or mind intimately associated with a spiritual body or soul, both of which are developed in and by means of a material organism

In all works on Natural History, we constantly find details of the marvellous adaptation of animals to their food, their habits, and the localities in which they are found.

I spent, as you know, a year and a half in a clergyman's family and heard almost every Tuesday the very best, most earnest and most impressive preacher it has ever been my fortune to meet with, but it produced no effect whatever on my mind.