In short...
In short, it is clear that science and knowledge are nothing other than the search for causes; all progress and advancement in human affairs result from the investigations carried out by scholars into the causes of phenomena. Were it to be possible for us to find in a single being or corner of the universe a sign of absolute self-origination or creativity, we would be justified in extending that one instance to the whole scheme of being.
Of course, it is not necessary that the law of causality should always manifest itself to us in familiar forms. The variety and multiplicity of causes is such that an investigator concerned with only one phenomenon might not be able to specify all the causes. However, in all the affairs of mankind, particular and general, past and future, in the circumstances of the individual or of society, not a single point can be found that is accidental.
Not only is there a particular order inherent in the creation of each separate phenomenon; there is also observable in the relationship of every phenomenon with other phenomena, as well as the relationship of each phenomenon with the environment within which it exists, a subtle and finely calculated order. For example, in the cultivation of a tree, the laws of the heavens and the earth operate in perfect harmony with the structure of its roots and branches.
There is also a relationship of animals with that tree insofar as they draw nourishment from it. How is it possible that accident should lie at the origin of such orderly relationships? If a phenomenon were to take shape at a certain level in the structure of being, unconsciously and on the basis of chance, this would furnish an excellent groundwork for the disappearance and destruction of the world.
For the slightest disruption in the balance of elements and the smallest disharmony in the radiant laws of the universe would be enough to make things lose their moorings and the heavenly bodies collide, resulting in a massive explosion and the destruction of the world. If the origin of the world were based on accident, why are the theories even of the materialists based on the supposition of a plan, an ordering, an absence of chance?
If the whole world is the result of chance and accident, what is it that did not emerge on the basis of chance?