Читать книгу Chambers's Journal of Popular Literature, Science, and Art, No. 698 - Various - Страница 2

Though we have not the slightest conception of what life is in itself, and consequently could not define it, we may, for the sake of convenience, think of it in this paper as some kind of force.

'In the wonderful story,' says Professor Huxley in his Lay Sermons, 'of the Peau de Chagrin, the hero becomes possessed of a magical wild ass's skin, which yields him the means of gratifying all his wishes. But its surface represents the duration of the proprietor's life; and for every satisfied desire, the skin shrinks in proportion to the intensity of fruition, until at length life and the last handbreadth of the peau de chagrin disappear with the gratification of a last wish. Protoplasm or the physical basis of life is a veritable peau de chagrin, and for every vital act it is somewhat the smaller. All work implies waste, and the work of life results, directly or indirectly, in the waste of protoplasm. Every word uttered by a speaker costs him some physical loss; and in the strictest sense, he burns that others may have light – so much eloquence, so much of his body resolved into carbonic acid, water, and urea. It is clear that this process of expenditure cannot go on for ever. But happily, the protoplasmic peau de chagrin differs in its capacity of being repaired and brought back to its full size, after every exertion. For example, this present lecture is conceivably expressible by the number of grains of protoplasm and other bodily substance wasted in maintaining my vital processes during its delivery. My peau de chagrin will be distinctly smaller at the end of the discourse than it was at the beginning. By-and-by I shall have recourse to the substance commonly called mutton, for the purpose of stretching it back to its original size.'

This explanation may be very philosophical, but it is only a roundabout way of saying that, within reasonable bounds, we can recover the effects of exhaustion by proper food and rest; which, as a fact, people are pretty well acquainted with. The error to be avoided is, in any shape to make such a pull on the constitution as to be beyond the reach of recovery. Life-force, or call it protoplasm, is an inherent quantity not to be heedlessly wasted; and this truth becomes more apparent the older we grow. Why is one man greater, in the sense of being more powerful than another? Because he knows how to get out of himself a greater amount of work with less waste of life-force.