The reception of Proverbs into the Hebrew Canon was for a time opposed on the ground of a supposed contradiction between two aphorisms (xxvi.
On the other hand, he spoke with respect of Hippocrates, and wrote a commentary on his Aphorisms. In this we see a spirit very different from the enthusiasm of the humanists for a purer and nobler philosophy than the scholastic and Arabian versions of Greek thought.
See Jacob Cats, Complete Works (1790-1800, 19 vols.), later editions by van Vloten (Zwolle, 1858-1866; and at Schiedam, 1869-1870); Pigott, Moral Emblems, with Aphorisms, &c., from Jacob Cats (1860); and P. C. Witsen Gejisbek, Het Leven en de Verdiensten;van Jacob Cats (1829).
He edited for Sebastian Gryphius, in the single year 1532, the medical Epistles of Giovanni Manardi, the Aphorisms of Hippocrates, with the Ars Parva of Galen, and an edition of two supposed Latin documents, which, however, happened unluckily to be forgeries.
L-Khair of Mahna in Khorgsgn (9681049; 357440 A.H.), the founder of that specific form of the rubai which gives the most concise expression to religious and philosophic aphorisms a form which was further developed by the great freethinker OMAR B.