There are plants on the earth, we see them, but they could not be seen from the moon. On these plants are hairs, and in these hairs tiny animals, but beyond that, nothing more. O, presumption! Compound bodies are made up of elements, but not the elementary bodies themselves. O presumption! Here is a fine distinction. We must not assert the existence of what we cannot see, we must then say what others say, but not think with them.
The world's judgment is right, for it is in that condition of natural ignorance which is man's best wisdom. The sciences have two extremes which meet. The first is that pure natural ignorance in which every man is born. The other extreme is that reached by great minds, who having run through all that men can know, find that they know nothing, and again come round to the same ignorance from which they started; but this is a learned ignorance, conscious of itself. Those between the two, who have left their natural ignorance and not been able to reach the other, have some tincture of this vain knowledge, and assume to be wise. These trouble the world, and judge all things falsely. The people and the wise make up the world; these despise it, and are despised; they judge ill of all things, and the world rightly judges of them.
Nature has made all her truths self-contained. Our art encloses them one within another, but that is not according to nature. Each holds its own place.
Spongia solis.—When we see the same effect invariably recur we conclude there is in it a natural necessity, as that there will be a to-morrow, etc. But nature often gives us the lie, and will not subject herself to her own rules.
Nature always begins the same things again, years, days, and hours, and in like manner spaces and numbers follow each other, end without end. So is made a sort of infinity and eternity, not that any thing of these is infinite and eternal, but these finite entities are infinitely multiplied.
Thus as it seems to me the number which multiplies them alone is infinite.
Nature imitates herself. A seed sown in good ground brings forth fruit. A principle cast into a good mind brings forth fruit.
Numbers imitate space, which is of an wholly different nature.
All is made and guided by one and the same master, root, branch and fruits; principles and consequences.