There are many special or "cross-filed" chains of abstractions (of
interconnected concepts) in man's mind. Cognitive abstractions are the
fundamental chain, on which all the others depend. Such chains are mental
integrations, serving a special purpose and formed accordingly by a special
criterion. Cognitive abstractions are formed by the criterion of: what is
essential? (epistemologically essential to distinguish one class of existents
from all others). Normative abstractions are formed by the criterion of: what
is good?
<div class="social_block">
<div class="gplus_wrapper"><div class="g-plusone" data-href="https://aynrandlexicon.com/ # site base urllexicon/normative_abstractions/1.html" data-size="medium"></div></div>
<div class="fb-like" data-href="https://aynrandlexicon.com/ # site base urllexicon/normative_abstractions/1.html" data-send="false" data-layout="button_count" data-height="20" data-width="90" data-show-faces="false"></div>
</div>