一个人精神失常，是极容易被识别的；一群人的精神失常，却很难被发觉。而最先发现并且指出的人，通常会被认为是精神病。 ——古斯塔夫·勒庞

因为怀疑才是智者 因为迷之自信才是蠢货

让我想起罗素描述的维特根斯坦的样子:

"He used to come to see me every evening at midnight, and pace up and down the room like a wild beast for three hours in agitated silence. Once I said to him: 'Are you thinking about logic, or about your sins?' 'Both', he replied, and continued his pacing. I did not like to suggest it was time for bed, for it seemed probable both to him and to me that on leaving me he would commit suicide."