The Logical Atheist

If it were possible to conceive of a mind whose strength and energy had elevated it above all the impressions of associated life, and the deductions drawn from early combinations, and the primary influence of scientific pursuits, we should then behold the intellect of man exhibited in that point of view, which would promise a fair discussion of all the diversified relations of existence, by which we are enabled to deduce all those fundamental laws contained in the physical, mental, and moral world. But in those cases where the human mind attempts the discussion of any philosophic subject, under the impression of a previous bias, every part and view of the subject is subjected to the influence of associated habits, and the unreasonable attachment of an unrestrained imagination, or a cruel and atrocious fanaticism. This is remarkably verified by the conduct of every religious sectary in the world, whose opinions, however variant from the standard of truth, are ever considered by the indi...

The sources of hope and consolation to the human race are to be sought for in the energy of intellectual powers. To these, every specific amelioration must bear a constant and invariable reference; and whatever opposes the progress of such a power, is unquestionably in most pointed opposition to the best and most important interests of our species. The organic construction of man induces a strong conclusion that no limits can possibly be assigned to his moral and scientific improvements. The question relative to the nature and substance of the human mind, is of much less consequence than that which relates to the extent of force and capacity, and the diversified modes of beneficial application. The strength of human understanding is incalculable, its keenness of discernment would ultimately penetrate into every part of nature, were it permitted to operate with uncontrolled and unqualified freedom. It is because this sublime principle of man has been constantly the object of the most sc...

The establishment of theological systems, claiming divine origin, has been among the most destructive causes by which the life of man has been afflicted. History furnishes an awful picture of the sad and fatal effects of fanaticism among the nations of the earth; but history furnishes only the exterior; there is a deeper internal wound, which superstition has inflicted in the bosom of society, subversive of all moral sympathy and the fairest traits in the character of man. --Elihu Palmer (1764-1806),  Principles of Nature; or, A Development of the Moral Causes of Happiness and Misery Among the Human Species