paraphrasing

Instruction 

 hand, seeks to give account of the interconnection of processes which are evinced by our own consciousness, or which we infer from such manifestations of the bodily life in other creatures as indicate the presence of a consciousness similar to our own.  

2.We can, therefore, no more separate the processes of bodily life from conscious processes than we can mark off an outer experience, mediated by sense perceptions, and oppose it, as something wholly separate and apart, to what we call ‘inner’ experience, the events of our own consciousness … 

3. Psychologists, it is true, have been apt to take a different attitude towards physiology. They have tended to regard as superfluous any reference to the physical organism; they have supposed that nothing more is required for a science of mind than the direct apprehension of conscious processes themselves.