Referring to the above diagrams it will be observed that although each arrangement contains the same number of atoms, yet, because of the difference in arrangement, they are far from being identical. In fact, the difference in the properties of the sugars may be referred to the arrangement of the atoms in the molecules. This truth is one of the most splendid achievements of modern science. All the facts, here briefly outlined, are included in the atomic hypothesis, which is the foundation of the modern science of chemistry. [Sidenote: Science requires a strong faith in "things not seen."] Science asks us to believe in the existence of particles, unknowable to our senses, the molecules; then to believe in still smaller particles, the atoms, which make up the molecules but whose relative weights and general properties have been determined. Here, a faith is required in "things that can not be seen," and in the properties of these things. True, the scientist does not pretend to describe the atoms in detail, he does not need to do that to establish the certainty of their existence. He looks upon them as ultimate causes of effects that he may note with his physical senses. Does theology require more? Does any sane man in asking us to believe in God, for instance, attempt to describe him in detail? The scientist goes farther than this, however, for he asks us not only to have faith in the invisible, untasteable, unfeelable atoms, but also in the exact manner in which these atoms are arranged within the molecule. True, it is claimed, only, that the relative arrangement is known, yet the faith required still leads us far beyond the simple faith in atoms. Has any man asked us to believe that he can describe the structure of God's dwelling? No principle taught by Joseph Smith requires a larger faith than this. [Sidenote: The conception of the ether requires large faith.] Not only in chemistry are such transcendent truths required. The fundamental conception of physics requires, if possible, a larger faith. The explanations of modern physics rest largely upon the doctrine of the universal ether. This ether is everywhere present, between the molecules and atoms; in fact the things of the universe are, as it were, suspended in the ocean of ether. This ether is so attenuated that it fills the pores of the human body without impressing itself upon our consciousness, yet some of its properties indicate that its elasticity is equal to that of steel. As shown in chapter 5, the most eminent scientists of the day declare that the existence of this world-ether is one of the few things of which men may be absolutely sure. Yet the ether cannot be seen, heard, tasted, smelled or felt. To our senses it has neither weight nor substance. To believe the existence of this ether requires a faith which is certainly as great as the greatest faith required by Mormon theology.