Why, one who foresees all contingencies... and foresees the adversary's intentions.
In 1865 an empty exchequer called for drastic measures, and the volksraad determined to endeavour to meet their liabilities and provide for further contingencies by the issue of notes.
Thus the field of disease arising not from essential defect in the body, but from external contingencies, is vastly enlarging; while on the other hand the great variability of individuals in susceptibility explains the very variable results of such extrinsic causes.
It was assumed that the individual members of society, by express or implied pact, agree to obey some person or persons; sometimes it is described as an unqualified handing over; sometimes it is a transfer subject to qualifications, and with notice that in certain contingencies this will be withdrawn.
Hence to give a margin of safety to cover contingencies not calculable, an excess of material must be provided.