[146] for as children and men do not learn the same things, but there are institutions adapted to each age, so also there are by nature some souls which are always childish, even though they are in bodies which have grown old; and on the other hand, there are some which have arrived at complete perfection in bodies which are still in the prime and vigour of early youth. But those men will deservedly incur the imputation of folly who desire objects too great for their own nature, since everything which is beyond one’s power will vanish away through the intensity of its own vehemence. [79] [80] [81] [82]