和十八世纪所有的法国唯物主义者一样,十九世纪德国的杰出唯物主义哲学家路德维希·费尔巴哈也在这条唯物主义的道路上发生了“倾斜”和“滑坡”。也就是说,他和他的前辈一样,都没有沿着唯物主义的轨迹,从唯物主义的自然观走向唯物主义的社会历史观,都没有把唯物主义彻底化为一个完整的体系,都没有摆脱历史唯心主义的巢臼。对于费尔巴哈的这种状况,恩格斯曾作过形象的描绘,他说:“他作为一个哲学家也停留在半路上,他的下半截是唯物主义者,他的上半截是唯心主义者”。这是马克思主义哲学产生以前的唯物主 Like all French materialists in the eighteenth century, Ludwig Feuerbach, a prominent German philosopher of materialism in the nineteenth century, also experienced “tilt” and “slide” on this materialist road. In other words, like his predecessors, he did not follow the course of materialism. From the view of materialism to the historical view of materialism, he did not completely materialize a complete system and did not get rid of it The ideal of historical idealism. Engels made a vivid portrayal of this situation in Feuerbach: “He remained halfway as a philosopher, his lower half was a materialist, and his upper half was an idealist ”. This is the materialist before the emergence of Marxist philosophy