ttingen: Moralstatistik. Erlangen 1882. nature of its subject matter. This is the maxim of a book, ``ber die Dummheit''[1] (1886), one of the wisest ever written. The same axiomatic proposition must dominate every legal task, but especially every task of criminal law. It is possible to read thousands upon thousands of testimonies and to make again this identical, fatiguing, contrary observation: The two, witness and judge, have not defined the nature of this subject; they have not determined what they wanted of each other.英文原著 · 《Criminal Psychology》