4...
We enjoy warmth because we have been cold.
We appreciate light because we have been in darkness.
By the same token, we can experience joy because we have known sadness.
5.
Except for the fact that darkness is the absence of light,
Cold is the absence of heat, We can have light and heat without darkness and cold.
We can have joy without sorrow but sorrow is because we have lost our joy.
7. How would we know it was dark unless it suddenly changed from light to dark?
How would we know it was sadness unless it was a sudden change from being happy?
I can remember a time of being happy before I experienced tragedy.
I learned evil from how it was different from what is good.
I understood beauty before ever seeing ugly.
I knew peace before turmoil.