William Whewell Quote
Our assent to the hypothesis implies that it is held to be true of all particular instances. That these cases belong to past or to future times, that they have or have not already occurred, makes no difference in the applicability of the rule to them. Because the rule prevails, it includes all cases.
Part 2, Book 11, ch. 5, sect. 3, art. 10. - Philosophy of the Inductive Sciences (1840)