Hans Eysenck

"Intelligence is the most important human trait"

"Personality is determined by genetics and environment in equal measure"

"Neuroticism is a predictor of psychological distress"

"The best person is one who scores high on extraversion and low on neuroticism"

"Genetics accounts for about 50% of personality variation"

"Education should be tailored to individual differences in ability"

"Creativity requires both high intelligence and certain personality traits"

"IQ tests are valid measures of cognitive ability"

"Psychoticism is associated with antisocial behavior"

"Human behavior can be measured and quantified scientifically"

"Extraversion correlates with sociability and assertiveness"

"Introversion is not a personality flaw but a different cognitive style"

"Conditioning plays a crucial role in personality development"

"Individual differences in personality are profound and measurable"

"The study of personality must be empirical and scientific"

"Happiness depends partly on inherent personality structure"

"Fear conditioning explains many phobias and anxieties"

"Nature and nurture both shape who we become"

"Intelligence testing has revolutionized education"

"Personality traits exist on a spectrum rather than in categories"

"Success requires understanding your own personality strengths"

"Psychometric science provides objective data about human differences"

"Leadership effectiveness varies by personality type"

"Anxiety disorders have measurable physiological components"

"The human nervous system determines much of our behavior"

"Patience in scientific inquiry yields truth"

"Work performance correlates with specific personality dimensions"

"Dreams reveal personality patterns and psychological processes"

"Creativity flourishes when personality traits align with opportunity"

"Justice requires understanding human nature scientifically"