Marilyn Monroe was, like Tony Curtis, new to Hollywood and wanting to be a star so he offered her a lift in his cheap Buick convertible and drove her to the hotel where she was staying. She gave him her number but it was a week before he had the courage to ask her out.
Definition of idea 1 a: a transcendent entity that is a real pattern of which existing things are imperfect representations b: a standard of perfection : ideal
A concept is an abstract idea representing the type and fundamental characteristics of some set of objects in one's mind. When the mind makes a generalization such as the concept of tree, it extracts similarities from numerous examples; the simplification enables higher-level thinking. Concepts arise as abstractions or generalisations from experience; from the result of a transformation of existing ideas; or from innate properties. A concept is instantiated (reified) by all of its actual or potential instances, whether these are things in the real world or other ideas.