Belief
Belief is the state of mind in which a person thinks something to be the case, with or without there being empirical evidence to prove that something is the case with factual certainty. Another way of defining belief is, it is a mental representation of an attitude positively oriented towards the likelihood of something being true. In the context of Ancient Greek thought, two related concepts were identified with regards to the concept of belief: pistis and doxa. Simplified, we may say that pistis refers to trust and confidence, while doxa refers to opinion and acceptance. The English word orthodoxy is derived from doxa. Belief's purpose is to guide action and not to indicate truth.