In the past, a scientist began with a surmise or hunch and began gathering data to prove or disprove it.
21, which he would be glad to disprove as at least exaggerated (ib.
For the paradox of predication, which he had used to disprove the existence of plurality, was virtually a denial of all speech and all thought, and thus led to a more comprehensive scepticism than that which sprang from the contemporary theories of sensation.
The old theory that referred this approval entirely to self-love, is, he holds, easy to disprove by " crucial experiments " on the play of our moral sentiments; rejecting this, he finds the required explanation in the sympathetic pleasure that attends our perception of the conduciveness of virtue to the interests of human beings other than ourselves.
The distinction is of greater importance than would appear when one realizes how obvious the facts really are, and in practice it happens frequently that speakers claim with success to disprove a proposition by disproving the fact alleged in support of it, or to establish a hypothesis by showing that facts agree with its consequences.