Ebook: Essays on suicide and the immortality of the soul

Matter, therefore, and spirit, are at bottom equally unknown, and we cannot determine what qualities inhere in the one or in the other. They likewise teach us that nothing can be decided concerning any cause or effect, and that experience being the only source of our judgements of this nature, we cannot know from any other principle, whether matter, by its structure or arrangement, may not be the cause of thought.