Our opinion, in support of which we have quoted these passages, is clearly established, namely, that no prophet or sage has ever announced the destruction of the Universe, or a change of its present condition, or a permanent change of any of its properties. When our Sages say, “The world remains six thousand years, and one thousand years it will be waste,” they do not mean a complete cessation of existing things; the phrase “one thousand years it will be waste” distinctly shows that time will continue; besides, this is the individual opinion of one Rabbi, and in accordance with one particular theory. But on the other hand the words, “There is nothing new under the sun” (Eccles. i. 9), in the sense that no new creation takes place in any way and under any circumstances, express the general opinion of our Sages, and include a principle which every one of the doctors of the Mishnah and the Talmud recognises and makes use of in his arguments. Even those who understand the words “new heavens and a new earth” in their literal sense hold that the heavens, which will in future be formed, have already been created and are in existence, and that for this reason the present tense “remain” is used, and not the future “will remain.” They support their view by citing the text, “There is nothing new under the sun.” Do not imagine that this is opposed to our opinion. They mean, perhaps, to say that the natural laws, by which the promised future condition of Israel will be effected, have been in existence since the days of the Creation, and in that they are perfectly correct. When I, however, said that no prophet ever announced “a permanent change of any of its properties,” I intended to except miracles. For although the rod was turned into a serpent, the water into blood, the pure and noble hand into a leprous one, without the existence of any natural cause that could effect these or similar phenomena, these changes were not permanent, they have not become a physical property. On the contrary, the Universe since continues its regular course. This is my opinion; this should be our belief. Our Sages, however, said very strange things as regards miracles; they are found in Bereshit Rabba, and in Midrash Koheleth, namely, that the miracles are to some extent also natural; for they say, when God created the Universe with its present physical properties, He made it part of these properties, that they should produce certain miracles at certain times, and the sign of a prophet consisted in the fact that God told him to declare when a certain thing will take place, but the thing itself was effected according to the fixed laws of Nature. If this is really the meaning of the passage referred to, it testifies to the greatness of the author, and shows that he held it to be impossible that there should be a change in the laws of Nature, or a change in the will of God [as regards the physical properties of things] after they have once been established. He