A RIDDLE

Does it work or play?  It works and plays.

Does it go or stay?  It goes and stays.

Does it give or take?  It gives and takes.

Does it sleep or wake?  It sleeps and wakes.

Is it short or tall?  It's short and tall.

Is it big or small?  It's big and small.

Is it thin or fat?  It's thin and fat.

Is it this or that?  It's this and that.

Is it happy or sad?  It's happy and sad.

Is it good or bad?  It's good and bad.

Is it old or new?  It's old and new.

Is it false or true?  It's false and true.

Is it dark or fair?  It's dark and fair.

Is it here or there?  It's here and there,

In every time, in every place.

What is it?

It's the human race.