"We doubt not but the men of your science are open to conviction; yet facts must be first demonstrated to them, they must first become their own property, have proved amenable to their own modes of investigation, before you find them ready to admit them as facts. If you but look into the Preface to the "Micrographia" you will find in Hooke's suggestions that the intimate relations of objects were of less account in his eyes than their external operation on the senses —and Newton's fine discoveries found in him their greatest opponent. The modern Hookeses are many. Like this learned but ignorant man of old your modern men of science are less anxious to suggest a physical connexion of facts which might unlock for them many an occult force in nature, as to provide a convenient 'classification of scientific experiments' so that the most essential quality of an hypothesis is not that it should be true but only plausible—in their opinion. Ch. I"