Idealists, realists, and opportunists are three different philosophical perspectives on how people perceive the world and make decisions. Idealists believe in the power of ideas and ideals, and they often strive to create a better world based on their vision of what is good and right.
Realists, on the other hand, are more focused on the practical and the concrete. They tend to be more skeptical of grand ideas and visions, and they focus more on what is possible and achievable given the current circumstances.
Opportunists, as the name suggests, are individuals who are willing to take advantage of opportunities as they arise, regardless of whether those opportunities align with their personal beliefs or values.