Opposites

There is no such thing as darkness, only the absence of light. I wonder if there is really no such thing as death either, only the absence of life. Could it be true in the reverse, that light is merely the lack of darkness, life merely the absence of death? Can darkness and death exist without the light and the living, or is the one dependent on the other? What is the meaning of death if there were no such thing as life? 


Maybe I should stop asking so many questions...