538
The various branches of knowledge always tend as a whole to stray away from life, and return thither only by a roundabout way.
539
For they are, in truth, text-books of life: they gather outer and inner experiences into a general and connected whole.
540
An important fact, an ingenious aperçu, occupies a very great number of men, at first only to make acquaintance with it; then to understand it; and afterwards to work it out and carry it further.