And unless the first and the second before be,

The third and the fourth can never more be.

So schoolmen teach and scholars believe,

But none of them yet ever learned to weave.

He who strives to know a thing well

Must first the spirit within expel,

Then can he count the parts in his hand,

Only without the spiritual band.

Encheiresis naturæ, ’tis clept in Chemistry,

Thus laughing at herself, albeit she knows not why.