good. If there is only good and no bad at all. how do we know its good. to understand good, bad was also created. God has given us common sense; which is 7% of our brain to understand the difference. So, by using our common sense, we can choose.

Another example could be hunger. We don't know what it means to be hungry when we are satiated (not hungry or stomach filled wid food). Compare ur self satiated with people who are starved. Do u know wat it feels like to be hungry?