《爱因斯坦，马赫， 与逻辑实证主义》 could be deduced.But in this rejection there was again agree. ment with Einstein who called such systems "metaphysics and empty talk"exactly as they have been called by the logical empiricists and,for that matter,already by Hume,Mach,and Comte. Concerning this question the difference between Einstein's approach and that of logical empiricism is only a verbal one. Whereas Einstein would,apparently,not use the term "posi- tivism"for his twentieth century group,they in turn would not use the term "metaphysical"for concepts which are con- structed by the human imagination in the process of deriving our sense-perceptions.《爱因斯坦，马赫，与逻辑实证主义》