Common sense is the collection of prejudices acquired by age eighteen.

"Common Sense - Your common sense is your natural ability to make good judgments and to behave in a practical and sensible way." "Prejudice - Having an opinion on some one or something before seeing it" I will accept the definitions of the terms "common sense" and "prejudice" as proposed by my opponent in round one. I would also like to point out that my opponent has chosen to equate the term "by age eighteen" to "adulthood;" which instead makes the resolution: "Common sense is the collection of prejudices acquired during childhood." By accepting this debate, and consequently the terms presented by my opponent, I must present my own concept of common sense which better conforms to the definition above. Arguments: The concept of good judgment: Firstly, I would like to disagree with my opponent's proposition that good judgment is entirely relative to the opinion of others. In the case of inheritable prejudices, questioning the opinion of others is necessary when attempting to determine whether such opinions should be continually acted upon or abandoned. Reserving judgment to social responses by one's family or friends severely defies the definition of "common sense" as provided by my opponent. I will explain why this is so in the following argument. Practicality and sensibility: Before I go any further, I must first define a few terms: +1 "Practical - Capable of or suitable to being used or put into effect; useful." +2 "Sense - The normal ability to think or reason soundly." In order to exhibit common sense, one must behave practically and sensibly. In order to behave both practically and sensibly, one must first determine the practicality of their actions. In the case of this debate, it is reasonable to conclude that my opponent believes that an opinion is +3 "a generally held view" considering his elaboration on the mechanics of inheritable prejudices and good judgment according to social justification instead of justification based on reason. Practical behavior, i.e. behavior which is useful or suitable, is not determinable simply by having a generally held view; one needs to logically justify their behavior to better determine if it would indeed be practical before acting. Such logical justification involves understanding the mechanics involved in a situation and using previous experiences and established knowledge to better determine if a specific course of action is suitable or useful. Good judgment is not purely socially determinable, but instead determinable through the analysis of the reasons for which an act is committed. If the reasons that an action was committed are considered poor or unfounded, then such behavior could be said to have been based on "bad judgment." (I would also like to point out that it is possible for one to look back upon their actions and determine them to be based upon bad judgment; social justification does not necessitate good judgment.) Logical justification allows one to exhibit behavior which they have determined is beneficiary to their survival and is a natural ability insomuch that it is a normally occurring capability in humans. I will also accept my opponent's proposition that natural ability is meant to mean "an innate sense" as long as my definition of "sense" is retained and the definition of innate is accepted as follows: +4 "Innate - Existing in, belonging to, or determined by factors present in an individual from birth." I assert that common sense is not "the collection of prejudices acquired during childhood" as described by my opponent; but instead propose the following: "Common sense is logically analyzing a situation and then acting according to sound reason." My concept of common sense meets the requirement of being both practical and sensible behavior, being based on good judgment and being a natural ability. Definitions: +1 – (4)Practical - http://www.thefreedictionary.com... +2 – (4b)Sense - http://www.thefreedictionary.com... +3 – (2b)Opinion - http://www.merriam-webster.com... +4 – (1)Innate - http://www.merriam-webster.com...