Answer: The Infinite One is perfect, without any deficiency. And if you say that God's force is only in the limitless, and not in the limited - then you are subtracting from God's perfection.
And if you say that the limit is found at the moment of creation of this world - this is a subtraction from God. And because there's not a deficiency in God's perfection, we have to say necessarily that God has a limitless limited force. And found in this is the beginning of the S'firot, which are a perfect force and a deficient force. When they receive from the divine flow that is coming from God's perfection, then they are a perfect force. But when the flow is prevented from reaching them, they are a deficient force, thus there is within them a force that works towards both perfection and deficiency. And the perfection and the deficiency, these are the things which separate between one thing and another. And if you say that God is alone, and at the creation of God's world there were not the S'firot, there is a reply to this - that is the intention of the teaching that it [the S'firot] are deliberately omitted. And if you say that there's no direction to God's creation, there's a reply as well - that if this were so why would creation be in the Torah? No word that comes from the Torah has an order, but we can see that everything that was created has an order - such as the sun during the day and the moon and stars at night. And about the order of these being established, and about the order of these being destroyed, and about the order of these being renewed - this is what is called the S'firot, because they are a force for all which exists and can be described in terms of numbers, and therefore the reality of all Creation is a projection of the S'firot. They change from one thing to another, and in them are high points, low points, and middle points. But despite this, all of them are of one essence, and all are from the Infinite One. There's nothing outside of God.