Methods of Philosophizing – Comprehensive Study Notes

Truth and Its Importance

Truth underpins knowledge, rational discourse, wise decision-making, and ethical action.
Philosophy investigates "What is truth?" by scrutinizing statements, evidence, and reasoning rather than taking anything for granted.

Clear awareness and understanding of something; a product of questioning answered by facts.
Knowledge is anchored in reality—what is observable or evident in the real world.
- “I know that…,” “I know why…,” “I know how….”
Comprised of true ideas and beliefs.

Propositions or statements observed to be real or truthful.
- Example: “Fish live in water.” This matches what is actually observed.

Statements not evidently or immediately known to be true.
Require further examination, evidence, or testing.
- Example: “My school is the best in the city.” Competing views demand justification.

Systematic doubt drives the philosophical quest for truth.
No statement is accepted without sufficient reason/evidence.
- Self-test example: Ask, “Am I alive? Do I have a body? Can I breathe?” then verify by pulse, breath, movement.

Sensory Justification
- A belief is true if verifiable through the senses.
- Example: “I am alive” confirmed by feeling heartbeat, observing breathing.
Correspondence to Facts
- Truth aligns with established facts.
- Example: “I am Filipino” checked against dictionary definition of Filipino.
Consensus
- A belief gains credibility if a community agrees.
- Limitation: Group agreement alone does not guarantee truth (e.g., widely held misconceptions).
Official Documentation / Supporting Evidence
- Truth supported by credible records (birth certificate, IDs).
- Limitation: Documents can be forged or contain errors (misspelled names do not change identity).
Demonstrable Action (Pragmatic Test)
- Ability to perform an action proves the associated claim.
- Example: Proving one can fry an egg requires both the act and an edible result.
Philosophical Testing
- Subject belief to logical analysis, counter-examples, and rigorous debate.

Convictions not easily or wholly explained by facts alone.
Require context of personal experiences and worldview.
- Example: “I believe God placed me on Earth to spread love.”

Assume a claim is true and provide reasons.
- Example: “My sister is selfish because….” The reason attempts to clarify the asserted trait.

Argument: series of statements giving reasons to show a claim is true.
Logic: branch of philosophy analyzing argument structures and validity.
Essential checks when evaluating arguments:
- Are premises true?
- Do premises logically entail the conclusion?
- Any hidden assumptions or biases?

Ad hominem: Attack the person, not the argument.
“He’s a rebel, so his critique of government is invalid.”
Ad baculum (Appeal to force): Use threat to impose acceptance.
“Disagree and you fail the course.”
Ad misericordiam (Appeal to pity): Exploit sympathy.
“I have 12 kids—don’t fire me.”
Ad populum (Bandwagon): Claim is true because many accept it.
“Everyone your age has a girlfriend—get one!”
Ad antiquitatem (Appeal to tradition): True because long-standing.
“Marriage has always been man-woman; therefore, gay marriage is wrong.”
Ad verecundiam (Appeal to authority): Misuse of authority.
“4 out of 5 dentists say brushing makes life meaningful.”
Fallacy of Composition: True of part ⇒ true of whole.
“Each brick weighs <1 lb, so the building weighs <1 lb.”
Fallacy of Division: True of whole ⇒ true of parts.
“Water isn’t wet, so hydrogen and oxygen aren’t wet.”
Hasty Generalization: Conclusion from too few cases.
“Three students can’t speak French ⇒ no one in school can.”
Post Hoc (False cause): Unrelated events treated as cause-effect.
“Every time I wear a red scarf, I cry—scarf causes tears.”

Correspondence/Fundamental Attribution Error
- Judge personality solely by actions, ignoring situation.
  “All soldiers are bloodthirsty.”
Confirmation Bias
- Seek info that confirms existing belief; reject contrary data.
  “I’m Christian, so I ignore arguments against God’s existence.”
Conflict of Interest
- View colored by vested stake.
  “As the accused’s daughter, I support him.”
Cultural Bias
- Judge events via one’s cultural standards.
  “I reject retirement homes; we Filipinos care for elders.”
Framing
- Emphasize certain problem aspects, ignore others.
  “Investigators focus on pilot error before establishing cause.”
Hindsight Bias
- After outcome, claim we ‘knew it all along.’
  “I knew the glass would fall once you placed it on the edge.”

Examine sources’ backgrounds to understand context of their views.
Objective evaluation plus awareness of our biases leads to wiser choices about which views to adopt and which actions to undertake.

Truth requires justification beyond mere assertion.
Facts, sensory evidence, consensus, documents, action, and philosophical testing each offer partial pathways to truth; recognize their limits.
Opinions, beliefs, explanations, and arguments differ—evaluate each appropriately.
Fallacies and biases can distort reasoning; mastering them safeguards intellectual integrity.
Philosophical methods cultivate critical thinking, enabling us to navigate information, arguments, and decisions responsibly.