@imrainmaker Yes, I don’t know what you mean at all, and I can imagine various things you might mean. I don’t usually use “strong” or “tough” with “mental”. Rather, I tend to think of the many different categories of intelligence, or of perceived smartness, or of mental will, or of developmental age, or of maturity, or of emotional intelligence, or of willpower, or of stubbornness, or of critical thinking, or of tendency to go along with the suggestions of other (or not), or of analyticalness, or of “common sense”, or of psychic/mental powers, or of genius or savant abilities, or of mastery of a field, or scholarly rigour, or IQ test skills, or wisdom, or savvy, or cunning, or street smarts… all of these and more seem like possible qualities that might be described metaphorically of “strengths” of the mind.