Organon §187

External maladies not caused by injuries of proportionate violence arise from internal causes and involve the entire organism.

Those alterations and ailments appearing on external parts that have not been caused by an external damage, or that have only been occasioned from small external injuries, arise in quite another manner; these have their source in an internal suffering. To pass them off as only local maladies and to treat them only or almost only with local applications or other similar means (surgically, as it were) as the hitherto medicine has done throughout the centuries, is as absurd as it is detrimental in its consequences.