saved man's life from pollution for generations, like the ocean of air that keeps the earth sweet, ever cleansing its impurities.
But life has its sleep, its periods of inactivity, when it loses its movements, takes no new food, living upon its past storage. Then it grows helpless, its muscles relaxed, and it easily lends itself to be jeered at for its stupor. In the rhythm of life, pauses there must be for the renewal of life. Life in its activity is ever spending itself, burning all its fuel. This extravagance cannot go on indefinitely, but is always followed by a passive stage, when all expenditure is stopped and all adventures abandoned in favour of rest and slow recuperation.
The tendency of mind is economical, it loves to form habits and move in grooves which save it the trouble of thinking anew at each of its steps. Ideals once formed make the mind lazy. It becomes afraid to risk its acquisitions in fresh endeavors. It tries completely to enjoy security by shutting up its belongings behind fortifications of habits. But this is really shutting oneself up from the fullest enjoyment of one's own posses-
