Notes, summaries, assignments, exams, and problems for Philosophy and ethics

The Transition from the Middle Ages to Modernity

Background: In the thirteenth and fourteenth centuries, knowledge revolved around the relationship between faith and reason, and society was organized according to a theocentric vision of the world. Modernity arises from the confrontation with the Middle Ages.

The Rise of Renaissance Humanism

If medieval life revolved around God, Renaissance humanism stars in a naturalistic turn that promotes anthropocentrism. Man becomes the center of intellectual interest, rediscovering Greco-Roman thinkers through philology. This change in European thought provoked a crisis of European consciousness determined by various social, economic, religious, cultural, artistic, and scientific events.

The Scientific Revolution

Nietzsche's Philosophy: Nihilism and the Death of God

Nietzsche's philosophy takes as its starting point the cultural diagnosis of nihilism. This nihilism is understood as the historical event that Nietzsche called the "death of God."

The Platonic-Christian Tradition and Supersensible Reality

From Socrates to Plato, Western tradition has understood true reality – that which gives existence meaning and intelligibility – to lie in a parallel world. In Plato's philosophy, this is the world of Forms. Christianity, which Nietzsche considered an heir of Platonism, further extended this concept. This world of Forms, or the 'beyond' in tradition, acted as the norm and measure of truth and goodness, serving as the source of all that is true and good... Continue reading "Nietzsche's Philosophy: Nihilism, Death of God, and the Übermensch" »

Descartes' Dualism: The Division of Substance

The reality, according to Descartes, is divided into three classes of things (res) or substances:

• Res Infinita (Infinite Substance): God, the creator of all things, who ultimately serves as the guarantor of our cognitive ability.
• Res Cogitans (Thinking Substance): The ego or soul, representing the innermost nature of man. The ego, as the subject of all intellectual activity, is composed of two faculties: the intellect and the will.
• Res Extensa (Extended Substance): External bodies or material substances.

The Cartesian View of Human Nature

The separation between spiritual substance (Res Cogitans) and extended substance (Res Extensa) profoundly affects the Cartesian view of human beings. The human body,... Continue reading "Descartes' Dualism: Mind, Body, and the Pineal Gland" »

Critique of the Theory of Platonic Reminiscence

Reminiscence in the Meno

After the exposition of Plato's religious-mystical theory of reminiscence, Socrates—the character Plato uses to explain this transitional theory—asks for a demonstration of its "truth," though he does not question its "utility."

Socrates' demonstration is not "brilliant" but "dialectic." We find the famous passage of Meno's slave, who, despite never having received instruction in geometry, is led by Socrates through a trial-and-error process to conclude that the diagonal of a square forms the side of a square double the area of the former. Therefore, that knowledge, not acquired during his life, was found "potentially" in his soul.

The Maieutic Procedure

The "maieutic"... Continue reading "Platonic Reminiscence: Analysis of Meno and Phaedo" »

What Should I Do? Kant's Moral Philosophy

Kant replies: Reason criticizes the practice. Human reason has two faces: reason concerned with the theoretical (what is) and reason dedicated to the practical (what to do). These are two sides of a single reason. The practical face is dedicated to identifying with our will.

The Foundation of Kantian Ethics

To study this aspect, Kant starts from a "factum": the moral law exists in men. We know what is right and what is wrong. Kant wonders if pure reason is enough to know what must be done.

Kant's Critique of Material Morals

Kant’s previous studies on morality led him to criticize what he called "material morals" (MM), stating that they are not well done. Material morals have a double content: they tell... Continue reading "Understanding Kant's Moral Philosophy and the Realm of Ends" »

Two Positions in Modernity: Reason and Senses

1) Empiricism: Knowledge originates and concludes with experience, derived from sensory information. Two types of perceptions exist: impressions and ideas. (Hume)

2) Rationalism: The dominant philosophical tradition of the 17th and 18th centuries, emphasizing confidence in reason as the primary tool for understanding reality. Reason plays a crucial role in discovering innate ideas for true knowledge. (Descartes)

3) Kant: Sensations provide the raw material for knowledge, but human reason organizes it in a universal manner.

The Subjective Construction of Knowledge

1) Sensations: All living beings share sensitivity to external stimuli. While sensitivity varies, sense organs are the structures through which... Continue reading "Epistemology: Reason, Senses, and Knowledge Construction" »

John Locke (1632-1704)

John Locke was a representative of philosophical empiricism, a thinker, an intellectual, and an advocate for a liberal regime. He was a philosopher, politician, physician, and chemist. In his *Essay Concerning Human Understanding* and his *Letter Concerning Toleration*, he defended religious tolerance.

Locke lived through the Middle Ages, a time marked by religious and political intolerance, centralization of power, and a lack of peace and security. Violence, bigotry, and inequality dominated the era. He believed that the solution to the disputes between the Christian sects that arose after the Reformation lay in tolerance. Today, his remarks advocate for a secular state.

His principal works include *Two Treatises of Civil... Continue reading "Key Philosophers and Thinkers: Renaissance to Enlightenment" »

Anthropological Dualism: Body and Soul

Amdo's aspects of anthropological dualism (body and soul) are different, but a continental union. Each person occupies the body temporarily and then is reincarnated.

Plato

For Plato, man is composed of body and soul. The soul is pure, divine, and eternal, while the body is material, temporal, and not divine. The body is a kind of rush to the soul, which wants to get rid of it in two ways:

• Through Philosophy (spiritual effort)
• Through Death

However, the soul survives and can be incarnated in another body.

Aristotle

Aristotle has a biological conception of man, who says he is an inseparable unity of body and soul, which is the vital principle.

Descartes

For Descartes, the soul is an ego (I) that thinks: Ego cogito

Nihilism and the Death of God

Nihilism and the death of God, the will and the transmutation of values, the eternal return, and the Overman: culture has reached its own ruin and total decline. Hence, there is a need for restoration. This is the philosopher's task: to liberate man from all fictitious values, restoring the right to life.

The Consequence of Absent Values

Nihilism is itself the consequence of the absence of values. With the death of God, existence has lost its sense of direction. However, this is the condition for the will to power to create other new values.

The New Morality and the Passion for Life

Nietzsche argued that Euripides, Socrates, and Plato removed the art of choosing a philosophy based on the knowledge of causes, effectively... Continue reading "Friedrich Nietzsche: The Will to Power and the Overman" »

Fundamental Rules of Deduction

• Modus Ponens: A → B, A / B
• Modus Tollens: A → B, ¬B / ¬A
• Disjunctive Syllogism: A ∨ B; ¬A / B
• Hypothetical Syllogism: A → B, B → C / A → C
• Reductio ad Absurdum: A → (¬B ∧ B) / ¬A

Formal Fallacies in Reasoning

Formal methods of deduction can be misused. Reasoning incorrectly can lead to false conclusions even when starting from true premises.

• Affirming the Consequent: A → B, B / A
• Denying the Antecedent: A → B, ¬A / ¬B

Ambiguity

Deductions may be formally valid but contain misleading content due to ambiguous language. Example: "Only man is rational" (implying women are not).

Inductive Fallacies

• Inadequate Generalization: Inductions are weak when data is insufficient or biased.
• Mock Trial (Cherry Picking)