Questions Evolution Does Not Answer 
sist that we should not think of 
evolution in terms of progress, but 
merely in terms of adjustment. 
Prof. Albert GK Keller, of the 
Yale University, for instance, says: 
“It is one of the common miscon¬ 
ceptions about evolution, and one 
into which Henry Adams fell, that 
it means progress. It means ad¬ 
justment only. . . . The fact is that 
the terms progress and retrogres¬ 
sion, as their etymology indicates, 
imply that the user of them has 
selected some center of operations 
from which he can infallibly ad¬ 
judge what is ‘pro’ and what is 
‘retro.’ He is at liberty, in free 
countries, to do this for himself, 
and to try to persuade others that 
he is right, and, sometimes, whole 
groups can agree on what is prog¬ 
ress and what is not, but it is gen¬ 
erally impossible to get extended 
unanimity as to the identity of 
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