ABSTRACT
Non-statistical grounds for inferring a particular causal relationship between two characters can most easily be illustrated from the practice of the law courts. The law courts are continually engaged in a search after causes and facts relevant to some issue, and since it is the causes of an individual single occurrence and not mass phenomena that are sought, resort cannot be had to Statistical methods. What any and every man knows by common sense may be considered as obtained from two sources: his experience based on observation of how other people seem to act under similar circumstances to those laid before him, and his knowledge of how he himself would feel and act under such circumstances. If statistics are not available and resort must be had to commonsense analysis, the utmost precaution should be taken to avoid impressionism and incomplete and one-sided observation. The step-by-step method in economics is often a pure construction.
