Ключевые слова: adult, back, background, blackboard, brain, bright, bulb, business, businessman, career, caucasian, chair, chalkboard, concept, creative, energy, expression, genius, gesture, glow, grunge, handsome, head, idea, innovation, inspiration, intelligence, invention, lamp, light, lightbulb, male, man, mind, office chair, pensive, person, sit, sitting, solution, suit, symbol, think, thinking, thoughtful, wall, wondering, work, young,