Books, Quotes

Logic Diary: Facts and Ideas

Dennis Q. McInerny's quote about ideas

Quoted from the book, “Being Logical: A Guide to Good Thinking.”

Last year I bought D. Q. McInerny’s book, Being Logical: A guide to good thinking, but I had not begun reading it until this morning. Since launching my brand site, Organic Lyricism, I’ve been evaluating my assumptions about environmental rights and consumerism. In order to validate my beliefs, I thought I should learn more about logical reasoning. Here are my notes:

There are two types of objective facts

  1. Things: existing entity, animal, vegetable, or mineral
  2. Events: made up of things or the actions of things

Validating objective facts requires direct and indirect observations

  • Direct observation: you observed the thing or event directly
  • Indirect observation: requires you to trust the evidence of someone who observed the thing or event directly

A subject fact is dependent on the subject experiencing it

  • An example of a subjective fact is a toothache
  • Assessing the validity this subjective fact depends on how much you trust the person claiming to have a toothache

Ideas stem from things or events that exist in the world independent of and outside of the mind (objective facts)

  • You can clarify your ideas when you focus on the original sources of your ideas in the objective world
  • The more you focus on ideas that ignore their original sources, the less reliable those ideas become

Three basic elements of human knowledge

  1. An objective fact (e.g. animals)
  2. The idea (stems from facts you know about animals)
  3. The word to communicate the idea (e.g. in English, “animals”)

Animals had to exist first. Their existence led you to the idea of them. The word “animals” is what you’ve used to communicate your idea.

Dennis Q. McInerny's quote about ideas

Quoted from the book, “Being Logical: A Guide to Good Thinking.”

I’m really enjoining learning about logic. I suggest you check out his book if you want to explore your own reasoning process.

Being Logical: A Guide to Good Thinking by Dennis Q. McInerny