New England Potato Clam Chowder

Name: New England Potato Clam Chowder
Ingredients: 1 x onion, chopped; 3 stalks celery, chopped; 1/2 stick butter, (or reduce for calorie/fat restricted diets); 6 x potatoes, peeled and diced; 3 milk ,half-and-half or light cream (or combination of these) cup milk ,half-and-half or light cream (or combination of these); 3 cans clam juice with chopped clams or 2 dozen freshly steamed clams, chopped, reserving 1 cup of clam juice(3 undrained cans (6 1/2 ounces each)); 1 tsp Sage,dried; salt and pepper to taste