author - "Herbert Spencer"

The Four Chapters Of Which This Work Consists, Originally Appeared As
Four Review-Articles: The First In The _Westminster Review_ For July
1859; The Second In The _North British Review_ For May 1854; And The
Remaining Two In The _British Quarterly Review_ For April 1858 And For
April 1859. Severally Treating Different Divisions Of The Subject, But
Together Forming A Tolerably Complete Whole, I Originally Wrote Them
With A View To Their Republication In A United Form; And They Would Some
Time Since Have Thus Been Issued, Had Not A Legal Difficulty Stood In
The Way. This Difficulty Being Now Removed, I Hasten To Fulfil The
Intention With Which They Were Written.



That In Their First Shape These Chapters Were Severally Independent, Is
The Reason To Be Assigned For Some Slight Repetitions Which Occur In
Them: One Leading Idea, More Especially, Reappearing Twice. As, However,
This Idea Is On Each Occasion Presented Under A New Form, And As It Can
Scarcely Be Too Much Enforced, I Have Not Thought Well To Omit Any Of
The Passages Embodying It.