Shades of Gray

There really is no black and white.

The yin yang symbol may be black and white, but each segment of the circle is constantly merging into the other.

We perceive dark because of the absence of light; night becomes day—they are complements, not opposites.
 Without one we could not appreciate the other.
And then there is hot, warm, cool, cold, tepid, freezing etc.
 Look for the degrees in life (the shades of gray if you like).