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.

The better we are acquainted with the physiological, psychological, and historical laws deduced by observation and by which man is controlled, and the more correctly we perceive the physiological, psychological, and historical causes of the action, and the simpler the action we are observing and the less complex the character and mind of the man in question, the more subject to inevitability and the less free do our actions and those of others appear.