Owing to the vigorous and elastic strength of man’s original power, necessity does not often require anything save the removal of oppressive bonds. F… - Wilhelm von Humboldt

Every development of truths which relate to human nature, and more especially its active manifestations, is attended with a wish to see worked out in practice what theory has shown us to be just and good. To man, whose mind is seldom satisfied with the calmly beneficent influence of abstract ideas, this desire is perfectly natural, and it increases in liveliness with the spirit of benevolent sympathy in social happiness and well-being. But, however natural in itself, and however noble in its origin, this desire has not unfrequently led to hurtful consequences,—nay, often to greater evils than the colder indifference, or (as from the very opposite cause the same effect may follow) the glowing enthusiasm, which, comparatively heedless of reality, delights only in the pure beauty of ideas.

As soon as one stops searching for knowledge, or if one imagines that it need not be creatively sought in the depths of the human spirit but can be assembled extensively by collecting and classifying facts, everything is irrevocably and forever lost.

For even if we know very little that is certain about spirit or soul, the true nature of the body, of materiality, is totally unknown and incomprehensible to us.