For example, intelligence cannot be directly quantified.
But we can operationalize intelligence in various ways.
Or we might use years of education as a way to operationalize intelligence, assuming that a person with more years of education is also more intelligent.
Of course, others might dispute the validity of these operational definitions of intelligence by arguing that IQ or years of education are not good measures of intelligence.
After all, a very intelligent person may not have the means or inclination to pursue higher education, or a less intelligent person may stay in school longer because they have trouble completing graduation requirements.
Legendary and fictional feral children are often depicted as growing up with relatively normal human intelligence and skills and an innate sense of culture or civilization, coupled with a healthy dose of survival instincts.
These mythical children are often depicted as having superior strength, intelligence, and morals compared to "normal" humans.