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

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)

Aristotle: Ethics, Virtue, and the Polis

The status of citizens and humans tends toward an end or highest good: happiness. This involves understanding why a contemplative life dedicated to rational activity is considered the ultimate aspiration. What in everyday life is often just a great aspiration.

The Pursuit of Happiness and Virtue

The soul's rational part encompasses intellectual virtues, such as dianoetic wisdom, and also has a function related to moral or ethical virtues.

Intellectual and Ethical Virtue

Dianoetic virtue is the result of instruction, while ethical virtue is achieved through habituation. This led Aristotle to state that ethical virtue is a habit. For this philosopher, it is not enough merely to know the rule; one must create... Continue reading "Aristotle's Ethics and Politics" »

Descartes' Methodical Doubt and the Foundation of Knowledge

Mental contents systematically subjected to methodical doubt will be:

1. The lessons learned.
2. The data of the senses (sometimes deceptive). This leads us to doubt the experience of the outside world. It even makes us doubt the existence of our own body, because we know it only through the senses.
3. Our experiences (as we say, anything other than the fruit of a dream). In many cases, it is impossible to distinguish waking from sleep, since the latter are presented to us as vividly as the experiences we have when awakened.
4. Our own thinking (and sometimes thoughts are also a source of deception, or perhaps an evil genius is deceiving me). The conception that has doubled in the period is free omnipotence,

Kant and the Enlightenment: Sapere Aude

Enlightenment is man's exit from the intellectual minority that is his own fault. Kant emancipated man from the tendency to be carried away by comfortable situations, arguing that it is necessary to fight for human emancipation. It is unhelpful to believe that a book, a leader, or a single action can provide the path to happiness. A violent revolution does not achieve a true reform of thinking. To address significant disparities in wealth, culture, and happiness, one must remove barriers—such as restrictive laws and prohibitions—to enable human improvement. However, every individual must be aware that they must act personally to achieve happiness.

If some rule and others merely obey, the blame does... Continue reading "Immanuel Kant: Sapere Aude and the Power of Reason" »

Kantian Moral and Practical Principles

Kantian moral-practical principles rely on what may be two types: maxims and laws. Maxims are subjective grounds that the subject considers valid for their individual will. Laws are valid principles for all, and objective principles that can build real moral duties.

Two Types of Morality

• Heteronomous Morality: Moral imperatives with explicit material content. The substance of the duty or rule is based on the supposition that the content is good, and its imperatives are always hypothetical or empirical. "Doing X is a duty because X is good."
• Autonomous Morality: Moral duty serves only as the imperative. It is universal and is fundamentally good, and imperatives are always categorical and universal. "Doing X