"Any picture firmly held in any mind, in any form, is bound to come forth. That is the great, unchanging universal law that, when we cooperate with it intelligently, makes us absolute masters of the conditions and situations in our lives."

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In the final, the positive, state, the mind has given over the vain search after absolute notions, the origin and destination of the universe, and the causes of phenomena, and applies itself to the study of their laws - that is, their invariable relations of succession and resemblance. Reasoning and observation, duly combined, are the means of this knowledge. What is now understood when we speak of an explanation of facts is simply the establishment of a connection between single phenomena and some general facts.

— Auguste Comte