Generate an image depicting a career vision board collage. The collage should include various symbols of professional success such as a high-rise corporate building, graduation cap, briefcase, trophy, dollar signs, and a globe, representing global opportunities. Also, include both tangible objects relevant to specific professions like a stethoscope for medicine, a gavel for law, and abstract concepts like pie charts and bar graphs for business. Sprinkle motivational quotes on the board for added inspiration. Make sure all components blend seamlessly to form a coherent and visually appealing collage.