Is darkness the absence of light?


Is good the absence of evil?


Can there be good without evil?


There cannot be light without dark in the same way that there cannot be good without evil - you need one to see and understand the other.
There cannot be sound without silence for without these intervals of no-sound you would have pure noise and that would be incomprehencible.
Next time that you are hearing someone talk, the song of the birds, the sound of steps or the noise of anything - try to focus on the intervals of silence and you shall see that if they were not there, between each word and each step, you would hear nothingness. But what is nothingness?

In order for there to be nothing there must be something, right?