What are Your Closet Staples?

According to this article, http://www.shopstyle.com/blog/How-Build-Capsule-Wardrobe-41391509?utm_medium=email&utm_campaign=dedicated_Timeless12, your closet staples should be tailored pants, a jeans jacket, a blazer, perfect fitting jeans, a maxi dress and black pumps. However, I don't agree about the leather jacket, white T-shirt, white button-up shirt, and ankle boots,. What are your wardrobe staples? Pieces you can't live without?