在C#中递归复制内容的最佳方法是什么？

public class Node
{
    public int Value { get; set; }
    public Node Left { get; set; }
    public Node Right { get; set; }
}

public static Node CopyNode(Node node)
{
    if (node == null)
    {
        return null;
    }

    Node newNode = new Node();
    newNode.Value = node.Value;
    newNode.Left = CopyNode(node.Left);
    newNode.Right = CopyNode(node.Right);

    return newNode;
}