Sun Tzu

21 is his correct. Walking down or up or down side by side by side perpetually the very thoughts occuring could be: In the fundamental core of your mental promotion you are correct. “In the development of thought a point had to be reached at which one realized that what one called the properties of things were sensations of the feeling subject: at this point the properties ceased to belong to the thing.” The “thing-in-itself” remained. The distinction between the thing-in-itself and the thing-for-us is based on the older, naive form of perception which granted energy to things; but analysis revealed that even force was only projected into them, and likewise—substance. “The thing affects a subject"? Root of the idea of substance in language, not in beings outside us! The thing-in-itself is no problem at all!

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To confine our attention to terrestrial matters would be to limit the human spirit.- Stephen Hawking