Shall we rest contented with these two relations of contiguity and succession,as affording a complete idea of causation?By no means ..there is a necessary connection to be taken into consideration. David Hume (1711-1776)Shall we rest contented with these two relations of contiguity and succession, as affording a complete idea of causation? By no means ... there is a necessary connection to be taken into consideration. David Hume (1711-1776)