The third consideration is the degree to which we apprehend that endless chain of causation
inevitably demanded by reason, in which each phenomenon comprehended, and therefore man's every action, must have its definite place as a result of what has gone before and as a cause of what will follow.
Up to that time they had been meaningless and without apparent causation
. But at college I discovered evolution and psychology, and learned the explanation of various strange mental states and experiences.
I paused, examining and analysing all the minutiae of causation
, as exemplified in the change from life to death, and death to life, until from the midst of this darkness a sudden light broke in upon me --a light so brilliant and wondrous, yet so simple, that while I became dizzy with the immensity of the prospect which it illustrated, I was surprised that among so many men of genius who had directed their inquiries towards the same science, that I alone should be reserved to discover so astonishing a secret.
We may then distinguish "vital" from mechanical movements by the fact that vital movements depend for their causation
upon the special properties of the nervous system, while mechanical movements depend only upon the properties which animal bodies share with matter in general.
The soul raised over passion beholds identity and eternal causation
, perceives the self-existence of Truth and Right, and calms itself with knowing that all things go well.
However, as we know that causal reductionism tries to eliminate all higher level causations and cross level causation, especially to reduce downward causation to the lower level causation.
It is thus clear that there are various inter-level causations forming a complex causal network in the hierarchical structure of a complex system.
Yet, it is hardly sufficient just to assert historical causations
. Those causations
, more importantly, must be demonstrated.
Accident causation models are tools to describe scenarios for accident occurrences, explain possible causation mechanisms of accidents, provide conceptual or theoretical basis for accident investigation methods, and hence give evidence to formulate specific recommendations for accident prevention.
To get a clear understanding of the accidents, a number of different accident causation models have been proposed, which can be roughly divided into three major groups according to Hollnagel's classification .
He practiced his own advice, as clearly demonstrated in what amounts to a fantastic tour de force in his The Causation
of Rheumatoid Disease and Many Human Cancers, a 350-page book that evaluates disparately named diseases and repeatedly demonstrates how they're related systemically--one arbitrarily classified disease grading nicely and continuously into another category.