Ключевые слова: benjamin franklin, black, brainstorming, bright, brightly lit, bulb, burning, business, concepts, contemplation, copy space, creativity, dark, electricity, fire, glowing, idea, illuminated, imagination, innovation, inspiration, invention, isolated, learning, light, light bulb, lighting equipment, metaphor, midair, new business, on off button, power, power generation, power supply, remote, solution, sparks, success, thinking,