Full Idea
In knowing the meaning of 'causing', men can only observe and remember what they have seen to precede the like effect at some other time, without seeing between the antecedent and subsequent event any dependence or connexion at all.
Gist of Idea
Causation is only observation of similar events following each other, with nothing visible in between
Source
Thomas Hobbes (Leviathan [1651], 1.12)
Book Reference
Hobbes,Thomas: 'Leviathan', ed/tr. Macpherson,C.B. [Penguin 1981], p.171