Ключевые слова: adult, adults, beard, book, businessman, casual, caucasian, clothing, concentration, creativity, entrepreneur, expertise, eyeglasses, glasses, gray, hair, illuminated, indoors, industry, lantern, learning, library, lifestyles, literature, looking, males, man, mature, men, occupation, old, one, people, person, portrait, reading, real, retirement, senior, sitting, skill, smiling, table, technology, wisdom, working, workshop, writing,