4 io MIND IN EVOLUTION CHAP. 



on solving which the possibility of " self-conscious de- 

 velopment " depends is to find the value of all these un- 

 known quantities, and by evaluating them, to determine how 

 much of moral truth is contained in recognised morality. 

 This is, in other words, to determine what is meant by 

 the best and highest development of the human soul, and 

 what conduct is essential thereto. 



Summing up : The work of intelligence in this stage 

 may be described as the Correlation of the governing con- 

 ditions of the life of 'mind \ that is, of the methods and aims of 

 correlation itself a correlation of correlations. 



Its distinctive psychological unit is the apprehension of 

 the principles and processes underlying thought the pro- 

 cess of thinking made conscious. This is the process 

 implicit in all the preceding stages, and in bringing it into 

 consciousness so that the whole of the " thought process " 

 now passes into the content, the reasoning of this stage is 

 as a syllogism in which the assumptions involved in 

 syllogising should be taken into account. 



In scope, the work of Intelligence is to correlate the 

 permanent underlying conditions of racial development with 

 its ideal goal. 



Its sphere is thus coextensive with life, and includes 

 the due appreciation of the conditions imposed on develop- 

 ment by heredity. 



Under its Ethical Aspect, we may call this the stage of 

 the rational Will in which social standards are subordinated 

 to and unified in the real conditions of human welfare and 

 development. 



At this fourth stage of development, the wheel has come 

 full circle. We start from a condition in which ancestral 

 " experience " acting indirectly through heredity and the 

 elimination of the less adapted fits responses to stimuli into 

 an order suited to maintain the racial type in the environ- 

 ment in which it finds itself. Passing out of this condition, 

 we enter on a process in which life is more and more 

 dominated by intelligence. 



In the lowest stage of this process, a dimly felt mass of 

 experience gradually remodels reaction to stimulus. In the 

 second stage, the perceptual world becomes clear and con- 



