Empiricism is a theory of justification that emphasizes the role of sensory experience in acquiring knowledge, arguing that all knowledge is derived from experience.

René Descartes is the philosopher most closely associated with the theory of rationalism, which emphasizes the role of reason and innate ideas in acquiring knowledge.

Coherentism is a theory of justification that argues that the truth of a belief is not a necessary condition for its justification, but rather that a belief is justified if it is coherent with other beliefs.

The Münchhausen Trilemma is the name of the argument that attempts to show that all our beliefs are ultimately unjustified, by arguing that any attempt to justify a belief must either rely on an infinite regress of justifications, a circular argument, or an unjustified starting point.

Social Epistemology is a theory of justification that emphasizes the role of social factors and intersubjective agreement in acquiring knowledge, arguing that knowledge is not solely a product of individual reasoning but is also shaped by social interactions and cultural practices.

The Problem of Induction is the name of the problem that arises when we try to justify our beliefs by appealing to past experiences, as it is always possible that our future experiences will contradict our past experiences.

Virtue Epistemology is a theory of justification that emphasizes the role of virtues and character traits in acquiring knowledge, arguing that knowledge is not solely a product of rational reasoning but is also shaped by our moral and intellectual virtues.

The Skeptic's Gambit is the name of the argument that attempts to show that we cannot know anything about the external world, by arguing that our senses are unreliable and that we can never be certain that our beliefs about the world correspond to reality.

Pragmatism is a theory of justification that emphasizes the role of practical consequences in determining the truth of a belief, arguing that a belief is justified if it leads to successful action.

The Problem of Self-Evidence is the name of the problem that arises when we try to justify our beliefs by appealing to self-evident truths, as there is no objective way to determine which truths are self-evident and which are not.

Externalism is a theory of justification that emphasizes the role of external factors, such as social norms and cultural practices, in determining the truth of a belief, arguing that knowledge is not solely a product of individual reasoning but is also shaped by external factors.

The Problem of Other Minds is the name of the argument that attempts to show that we cannot know anything about other minds, as we have no direct access to the thoughts and feelings of others.

Foundationalism is a theory of justification that emphasizes the role of foundational beliefs that are not themselves justified, but which serve as the basis for justifying other beliefs.

The Münchhausen Trilemma is the name of the problem that arises when we try to justify our beliefs by appealing to an infinite regress of justifications, as this would lead to a situation where no belief is ultimately justified.

Social Epistemology is a theory of justification that emphasizes the role of beliefs that are held by a large number of people, arguing that these beliefs are more likely to be true than beliefs that are held by only a few people.