Understanding Logic
Logic is the careful thought that guides an argument. It comes from the Latin root logos, which means “word.” In its most basic form, then, logic refers to the way that words connect to make meaning. Here are three basic ways that words carry meaning:
| manipulate: (1) to change with the hands, (2) to handle skillfully, (3) to modify in an unfair or deceitful way |
| manipulate feelings: to unfairly or deceitfully modify a person’s emotions |
| Negative political ads manipulate voters’ feelings so that they vote against rather than for a candidate. |
Your Turn Open one of your textbooks and point randomly to a word. Define the word. Then consider the words next to the one you chose. Does the syntax change your definition? Finally, consider the whole sentence. What does it mean semantically? Write the sentence in your own words.
Separating Fact from Opinion
At a very basic level, you need to understand the difference between a fact and an opinion. Often your argument will start with an opinion, but all arguments must contain plenty of factual evidence.
| John F. Kennedy was the 35th president of the United States. |
| John F. Kennedy was the most important president of the 20th century. |
Your Turn Write a factual statement about the current president of the United States. Write an opinion statement about the current president. Compare your statements with a classmate’s and discuss what makes each a fact or an opinion.