Notes, summaries, assignments, exams, and exercises for Philosophy and ethics for Baccalaureate

Descartes' Metaphysics: God and Substance

The question of my own existence leads to the proof of God's existence. An infinite being must be eternal.

Proofs for the Existence of God

There are two primary proofs for the existence of God:

1. The Idea of Infinity

   The idea of infinity itself must be eternal and is therefore an innate idea. Every idea has a cause, which must be more perfect than the idea itself. The cause of the idea of infinity has three possible sources:

   • The Cogito (my own self): This is rejected because I am a fallible being.
   • Nature: This is rejected because our senses can be illogical or deceptive.
   • An external cause: This cause must be infinite, necessary, and is therefore God.

2. The Ontological Argument

   The second proof is the ontological

Context: René Descartes and 17th-Century Philosophy

René Descartes, a prominent figure of the seventeenth century, is considered the father of modern philosophy. A great mathematician, he is known for inventing analytic geometry. He founded the influential school of continental rationalism, characterized by:

• Confidence in Reason

  Reason, as opposed to sensory experience, is the primary source of truth. It is infallible and capable of uncovering innate truths independently of sensory experience. From these foundational ideas, more complex truths are derived through deduction. There is a parallel between the world and reason, as both operate according to logical laws.

• Mechanistic Worldview

  The world is viewed as a machine governed by laws. This mechanistic

Individual Perspectives and the Universe

Individual perspectives are true: each view provides a critical perspective on the universe. These perspectives do not exclude one another; rather, they are complementary.

Ratiovitalism (1923–1955)

In The Theme of Our Time (1923), Ortega y Gasset sought to secede from the currents of life, specifically the irrationalism proposed by Nietzsche. He argued that it makes no sense to reject human reason simply because it is immersed in life. Ortega famously stated that "thinking is a vital function." He posits that reason does not mean life must be set aside; rather, reason is intrinsic to life. This leads to ratiovitalism, or vital reason, which stands in opposition to the pure reason of traditional rationalism,...

Enlightenment Reason: Finite Yet Critical

Reason during the Enlightenment was considered finite, limited by experience. It cannot surpass experimental limits, yet within the realm of experience, reason can potentially know everything. Within experience, reason is autonomous and self-sufficient, limited only by itself. It governs itself, independent of trends, customs, or traditions. Reason is inherently critical; it must subject everything to critique and judgment. Kant's conception of reason, while also critical and autonomous, acknowledges its limits, suggesting that what lies beyond experience either doesn't exist or cannot be proven.

The Enlightenment Concept of Man

This era moved towards a new humanism, emphasizing freedom from religious...

Philosophical Views on the Soul

Plato established a dualism between the sensible world and the world of ideas, which results in a dualism between body and soul in anthropology. For Plato, man is a spiritual and eternal soul locked within a body. The authentic and genuine self of man is the soul, destined for wisdom. Body and soul are two heterogeneous realities. The body is of a material nature and belongs to the world of the senses, while the soul is spiritual and belongs to the intelligible world. The soul's natural place is the intelligible world, not close to the body.

For Plato, the soul has three distinct parts:

• The rational soul: Immortal, intelligent, and of divine nature. It is the most noble and high, as its business is to know intellectually

Aristotle's Logic

3. Logic. Aristotle is credited with creating logic as a tool for scientific inquiry. He demonstrated that in science, problems are resolved by navigating between the singular and the multiple, the universal and the particular.

The syllogism expresses a relationship that illustrates how the universal applies to the particular. For example: "Every man is mortal. Socrates is a man. Therefore, Socrates is mortal."

• Induction (Inverse Process): If we know all particular cases and arrive at a general conclusion, the induction is complete. Example: Men, horses, and mules live long, and they are animals without gallbladders; therefore, animals without gallbladders are long-lived.

We possess scientific knowledge if we know: that something...

The Three Pillars of Stoic Philosophy

Stoics divided philosophy into three distinct parts: physics, logic (which includes the theory of knowledge), and ethics. While ethics is considered the most interesting and original component, it cannot be fully understood without the foundation of physics.

Stoic Physics and the Universal Order

Stoic physics, rooted in the philosophy of Heraclitus, views the world as a harmonious unit governed by the inflexible necessity of universal law, known as determinism. Stoics are the creators of the concepts of natural law and Providence.

• Cyclical Repetition: Nature is governed by a process of eternal recurrence, a necessary succession of unique events.
• Cosmic Consciousness: The universe is understood as a divine, living

Plato's Theory of Ideas

Plato's theory of ideas affirms the absolute and independent existence of immaterial entities that are unchanging and universal. These ideas constitute a perfect, eternal, and hierarchical world. At its peak is the idea of the Good, which is both the cause and purpose of all other ideas. Knowledge of this order is available to few – the philosophers – hence Plato's proposal that they should govern.

Plato describes a sensible world modeled by a demiurge who seeks to imitate the world of ideas, though matter prevents it from achieving perfection.

Theory of Knowledge: Reminiscence

Plato's doctrine of knowledge, called reminiscence, posits that humans consist of body and soul. The soul is immortal and belongs to the world...

Descartes' Method in Discourse on the Method

The fragment discusses the second part of René Descartes' Discourse on the Method, where he details his systematic approach to knowledge acquisition. Descartes establishes a set of easily applicable rules intended to achieve strict and accurate indubitable truths.

The Four Rules of Descartes' Method

This method consists of four essential steps:

1. Evidence: This is the criterion for truth. For Descartes, the first precept requires admitting only what is known with evidence. Truth is only what is presented with clarity and distinction.
2. Analysis: In this second step, Descartes proposes dividing complex problems into as many smaller parts as possible to examine each component thoroughly. These simple divisions

Specificity of Human Action

Action is the activity of a conscious, voluntary being; only humans can be considered agents of this type.

• Animal behavior: Animals are more conditioned by their genetic endowment. When animals act, they do not do so spontaneously and freely, but rather execute a genetic program. Many of their actions are automatic.
• Behavior of a computer: This is very similar to that of animals. It is defined by a computer program that determines its responses and actions.
• Human behavior: This behavior is spontaneous and not the repetition of an inherited pattern. The specificity of human behavior is choice; it is a voluntary agency.

Types of Human Action

• Individual Action: An activity produced in a conscious, voluntary way.
• Collective