The proof of the existence of one God, unique and omnipotent, is that for thousands of years people of different tongues have spoken of God, and, however many religions there might be, all consider that love and justice are the attributes of God.
We are not demiurges, but mortals who know this world by the things created. We are the servants of love and justice. And we differ from one another in how well we comprehend the creations of the Most High.
Believing and worshipping, we must not say that we can force others to believe and worship.
The source of humanity is love and justice. They are omnipresent and decide everything. They are the crown of Divine Creation. Even the way a stallion takes possession of a mare is a manifestation of love.
He who is swayed by the feelings of love and justice is a wise man and a learned man. Unable to invent science and learning, we can only behold and perceive the created world and understand its harmony by our reason.