Short answers, pulled from the story.
The Latin noun intelligentia emerged from the verb intelligere, meaning to comprehend or perceive. In the Middle Ages, scholars used intellectus as a technical term for understanding and translated the Greek philosophical concept of nous.
Early modern philosophers like Francis Bacon rejected scholastic ideas entirely. Thomas Hobbes called the phrase intellectus intelligit a logical absurdity in his 1655 work De Corpore. John Locke and David Hume preferred using understanding instead of intelligence in their English writings.
Intelligence Quotient tests first appeared in the early twentieth century to screen children for intellectual disability. These assessments later expanded to evaluate immigrants, military recruits, and job applicants.
Studies indicate g accounts for 47% of individual variance in primate cognitive measures. Between 55% and 60% of variance in mice stems from this same factor. These percentages mirror human IQ patterns where g explains 40-50% of variance.
Emotional intelligence involves conveying emotions clearly while reading others feelings accurately. Social intelligence focuses on understanding social cues and motivations within interpersonal situations yet remains distinct according to many scholars.