Idea

Plato, one of the first philosophers to discuss ideas in detail. Aristotle claims that many of Plato's views were Pythagorean in origin.

An idea (from the Greek word: ἰδέα (idea), meaning 'a form, or a pattern') is the result of thought. Although the word is used in common usage, in philosophy, ideas can also be mental representational images of some object. Many philosophers have considered ideas to be a fundamental ontological category of being. The capacity to create and understand the meaning of ideas is considered to be an essential and defining feature of human beings.

An idea arises in a reflexive, spontaneous manner, even without thinking or serious reflection, for example, when we talk about the idea of a person or a place. A new or an original idea can often lead to innovation. Our actions are based upon beliefs, beliefs are patterns or organized sets of ideas.