And even more than this:

On the contrary.

Today I am firmly convinced that basically and on the whole all creative ideas appear in our youth, in so far as any such are present. I distinguish between the wisdom of age, consisting solely in greater thoroughness and caution due to the experience of a long life, and the genius of youth, which pours out thoughts and ideas with inexhaustible fertility, but cannot for the moment develop them because of their very abundance. It is this youthful genius which provides the building materials and plans for the future, from which a wiser age takes the stones, carves them and completes the edifice, in so far as the so-called wisdom of age has not stifled the genius of youth.

The life which I had hitherto led at home differed little or not at all from the life of other people. Carefree, I could await the new day, and there was no social problem for me. The environment of my youth consisted of petty-bourgeois circles, hence of a world having very little relation to the purely manual worker. For, strange as it may seem at first glance, the cleft between this class, which in an economic sense is by no means so brilliantly situated, and the manual worker is often deeper than we imagine. The reason for this hostility, as we might almost call it, lies in the fear of a social group, which has but recently raised itself above the level of the manual worker, that it will sink back into the old despised class, or at least become identified with it. To this, in many cases, we must add the repugnant memory of the cultural poverty of this lower class, the frequent vulgarity of its social intercourse; the petty bourgeois' own position in society, however insignificant it may be, makes any contact with this outgrown stage of life and culture intolerable.

Consequently, the higher classes feel less constraint in their dealings with the lowest of their fellow men than seems possible to the 'upstart.'

For anyone is an upstart who rises by his own efforts from his previous position in life to a higher one.