How these aids are possible we have been informed from what has been said. Expressions or representations are _also_ practical facts, which are also called physical in so far as physics classifies and reduces them to types. Now it is clear that if we can succeed in making those practical or physical facts somehow permanent, it will always be possible (all other conditions remaining equal) on perceiving them to reproduce in ourselves the already produced expression or intuition. If that be called the object or physical stimulus in which the practical concomitant acts, or (to use physical terms) in which the movements have been isolated and made in some sort permanent, and if that object or stimulus be designated by the letter _e_; the process of reproduction will take place in the following order: _e,_ the physical stimulus; _d-b,_ perception of physical facts (sounds, tones, mimetic, combinations of lines and colours, etc.), which is together the æsthetic synthesis, already produced; _c_, the hedonistic accompaniment, which is also reproduced. And what else are those combinations of words called poetry, prose, poems, novels, romances, tragedies or comedies, but _physical stimulants of reproduction_ (the stage _e_); what else are those combinations of sound called operas, symphonies, sonatas; or those combinations of lines and colours called pictures, statues, architecture? The spiritual energy of memory, with the assistance of the physical facts above mentioned, makes possible the preservation and the reproduction of the intuitions produced by man. The physiological organism and with it the memory become weakened; the monuments of art are destroyed, and lo, all that æsthetic wealth, the fruit of the labours of many generations, diminishes and rapidly disappears. [Sidenote: _Physical beauty._] Monuments of art, the stimulants of æsthetic reproduction, are called _beautiful things_ or _physical beauty._ This combination of words constitutes a verbal paradox, for the beautiful is not a physical fact; it does not belong to things, but to the activity of man, to spiritual energy. But it is now clear through what transferences and associations, physical things and facts which are simply aids to the reproduction of the beautiful are finally called elliptically beautiful things and physical beauty. And now that we have explained this elliptical usage, we shall ourselves employ it without hesitation. [Sidenote: _Content and form: another meaning._]