Cook quinoa with 1 1/2 cups water (as directed by the package).
Meanwhile, chop celery, red pepper, onion and cilantro. Mix all these ingredients with black beans in a bowl.
Add cooled quinoa (my brother puts the cooked quinoa in the freezer, pan and all while, while he finishes the other ingredients) and toss.
Mix olive oil, red wine vinegar, lime juice and real maple syrup together to make dressing.
Add dressing to salad and serve. If serving later, reserve some of the dressing to add to the salad just prior to serving, and keep salad in refrigerator to chill.