Of all the intellectual faculties, judgment is the last to mature. A child under the age of fifteen should confine its attention either to subjects like mathematics, in which errors of judgment are impossible, or to subjects in which they are not very dangerous, like languages, natural science, history, etc.
Faith is like love, it cannot be forced. Therefore it is a dangerous operation if an attempt be made to introduce or bind it by state regulations; for, as the attempt to force love begets hatred, so also to compel religious belief produces rank unbelief.
And yet, just as our body would burst asunder if the pressure of the atmosphere were removed from it, so would the arrogance of men expand, if not to the point of bursting then to that of the most unbridled folly, indeed madness, if the pressure of want, toil, calamity and frustration were removed from their life. One can even say that we require at all times a certain quantity of care or sorrow or want, as a ship requires ballast, in order to keep on a straight course.
If life — the craving for which is the very essence of our being — were possessed of any positive intrinsic value, there would be no such thing as boredom at all: mere existence would satisfy us in itself, and we should want for nothing.
The first forty years of our life give the text, the next thirty furnish the commentary upon it, which enables us rightly to understand the true meaning and connection of the text with its moral and its beauties.
Just as one spoils the stomach by overfeeding and thereby impairs the whole body, so can one overload and choke the mind by giving it too much nourishment. For the more one reads the fewer are the traces left of what one has read; the mind is like a tablet that has been written over and over. Hence it is impossible to reflect; and it is only by reflection that one can assimilate what one has read. If one reads straight ahead without pondering over it later, what has been read does not take root, but is for the most part lost.
Das Ganze der Erfahrung gleicht einer Geheimschrift und die Philosophie der Entzifferung derselben. The whole of experience is like a cryptograph, and philosophy is like the deciphering of it.
Men of learning are those who have read the contents of books. Thinkers, geniuses, and those who have enlightened the world and furthered the race of men, are those who have made direct use
of the book of the world.