MATTER AND MIND 11 



exist and cannot be dissolved. The worker 

 on the higher and more difficult psychical 

 aspects must pay attention to the findings 

 of the bio-chemist and physiologist, for he 

 may be quite certain that anything less 

 certainly proven at a higher level which runs 

 counter to chemistry and physics will in the 

 end be found to be erroneous. Similarly, the 

 chemist on his part must not allow his vision 

 to be narrowed, and refuse to believe that 

 factors exist which do not come within the 

 problem of his science, so long as they are 

 not really impossible as a superstructure to 

 his basis when his science and that of the 

 psychologist have become more developed. 

 The incompatible on both sides must be 

 examined and investigated until incompatibil- 

 ity has disappeared, because it is certainly 

 due to error or incomplete knowledge on 

 either side, or on both, but outside this 

 limitation each worker must have perfect 

 liberty to pursue his investigations. This 

 plan is the one seen daily in operation. One 

 scientific worker, taking certain things for 

 axiomatic, is at work at a level to which the 

 scientists of another group have not yet built 

 up. The temple of knowledge is grand 

 enough in its superb proportions to find 

 working room for all of them, and the work 



