Terms

Note

The following content is from Jordan Haddad at Notre Dame Seminary.

The following is a list of basic terms which are fundamental to learning philosophy.

Philosophy

love or pursuit of wisdom; a quest for truth through logical inference to necessary principles rather than factual observation.

Mythos-Logos

represents the birth of philosophy; before Thales, people explained the world through myths, afterward they employed reason.

Branches of Philosophy

Metaphysics

study of “being qua being”, of reality behind appearance, or the ultimate principle behind things.

Epistemology

study of theory of knowledge, of what can we know and how we can know it.

Ontology

the theory of being, of what kinds of things exist.

Logic

the theory of proper argumentation. It judges if an argument is valid or faulty. It asks: Do the premises lead to the conclusion? But not: Are the premises right or wrong?

Ethics

discipline that deals with what is morally good or bad, right or wrong in human behavior. Asks: How should a person act?

Natural Theology

our knowledge of God based solely on reason, as opposed to revealed theology, which relies on Scripture; hence, Faith and Reason are the two ways by which we can know truth about many philosophical topics. Related to this are:

  • Ontological argument: the argument for God’s existence based on the kind of being God is: God is a perfect being, hence He must exist, else He is not Perfect.

  • Cosmological argument: the argument for God’s existence based on the fact that the existence of the universe is not self-explanatory and so needs to have been created.

Basic Ways to Describe Reality

Materialism

theory that affirms that physical matter is the only reality through which all being and processes and phenomena can be explained, ex. Atomism

Idealism

theory that affirms that reality is primarily composed of ideas or minds; ideas are the most real and the material world less real, ex. Plato

Monism

metaphysical view that there is only one kind of substance or ultimate reality; everything that exists is made of variations of one single element or principle, ex. Thales(water)

Dualism

theory that divides the world into two mutually irreducible elements, ex. Plato(world of Forms/material world)

Pluralism

metaphysical theory that the world is composed of many kinds of ultimate reality or elements, ex. Aristotle

Cosmology

philosophical study of the external universe (not of man’s place in the universe)

Nominalism

the belief that universals exist in name alone, thus denying the existence of Forms or natures

Ockham’s Razor

the notion that entities should not be multiplied without necessity, or that the simplest explanation is the best

Epistomology

(how we know reality)

Rationalism

the belief that truth or knowledge can be known only through reason, and not through sense experience, ex. Plato

Empiricism

the belief that truth or knowledge can be known only through sense experience; ex. Aristotle

Relativism

theory that there is no objective truth, but just different perceptions and interpretations. Questions of right/wrong or true/false differ according culture and people

Subjectivism

a type of relativism in which truth is determined by each person’s (as opposed to each culture’s) perceptions of the world

Skepticism

the belief that there is no truth or that we cannot know the truth

Scientism

the assummption that the only valid knowledge is derived from the scientific method, that is, the ordered observation of the material world which enables us to control that world

Innate Ideas

these are associated with rationalism, the ideas we can know independently of any experience; also called a priori knowledge

Tabula Rasa

the idea associated with empiricism which states that the human mind begins as a “blank slate” lacking any innate ideas. Ideas come to the mind through experience, either external sense experiences or internal reflective experiences; also called a posteriori knowledge

The Principle of Non-contradiction

the fundamental logical principle behind all reasoning which asserts that nothing can be and not-be simultaneously (or, the same proposition cannot be simultaneously affirmed and denied).

Human Nature and Ethics

Philosophical anthropology

the philosophical study of human nature

Psychology

the study of the soul (Greek: psyche) as the principle of life and activity

Sensible

that reality which is known by the senses, i.e., the material, perceivable world

Intelligible

those aspects of reality that are not sensible, but are known by means of the intellectual grasp of higher realities

Will

the faculty or power of humans to move themselves to action, as opposed to reacting on instinct; for Aquinas, this is the “rational appetite”

Freedom

the idea that actions are not caused by an agent other than the one acting

Determinism

the opposite of freedom; the idea that actions are caused or determined by something outside of one’s direct control

Contingent

Any event that did not have to happen

Necessary

that which cannot be otherwise than it is

Plato and Aristotle

(founders of philosophy)

Justice(Plato)

Virtue of the whole person through which reason controls the appetites with the help of the spirited part of the soul

Forms

For Plato and Aristotle, the metaphysical principle determining what something is, and the object that is known, since it is behind or apart from the material world of change

Categories

For Aristotle, the ten ways in which Being is said to really exist; the primary division is between substances, the subject of all predication, and the variable accidental categories

Substance

for Aristotle, substance is matter plus form; the basic unit of existence

Accident

qualites of a substance which exist IN a substance and, if changed, do not change the substance itself

Hylomorphism

the idea that all beings are made of two inseparable principles, form (the what) and matter (the stuff)

Act and Potency

Aristotelian manner of explaining possibility for change. Form determines what something is (principle of actuality); potency is what can be, and is associated with matter’s capacity to take on different forms.

Teleology

Aristotle’s principle that all natures act for the sake of an end or goal; hence all reality is goal directed

Four Causes
  1. material cause: stuff from which something is made

  2. formal cause: “shape” of what it is

  3. efficient cause: outside force which brings substance into being

  4. final/end cause: purpose for which something exists