I think it's like everything else; one shouldn't dig too deeply. It's silly to say that with a journalist, but sometimes there is not a truth to be found.
I have frequently detected myself in such kind of mistakes... in a total misapprehension of character at some point or other: fancying people so much more gay or grave, or ingenious or stupid than they really are, and I can hardly tell why, or in what the deception originated. Sometimes one is guided by what other people say of them, without giving oneself time to deliberate and judge.
A man is called affected, nowadays, if he dresses as he likes to dress. But in doing that he is acting in a perfectly natural manner. Affectation, in such matters, consists in dressing according to the views of one's neighbour, whose views, as they are the views of the majority, will probably be extremely stupid.
There is a stupid humility that is quite common and when a person is afflicted with it, he is once and for all disqualified for being a disciple of knowledge.
When I was 17, my father was so stupid, I didn't want to be seen with him in public. When I was 24, I was amazed at how much the old man had learned in just 7 years.
The man whose whole life is spent in performing a few simple operations, of which the effects are perhaps always the same, or very nearly the same, has no occasion to exert his understanding or to exercise his invention in finding out expedients for removing difficulties which never occur. He naturally loses, therefore, the habit of such exertion, and generally becomes as stupid and ignorant as it is possible for a human creature to become.
Each of the professions means a prejudice. The necessity for a career forces every one to take sides. We live in the age of the overworked, and the under-educated; the age in which people are so industrious that they become absolutely stupid.