Marc B. Shapiro writes: R. Hirschensohn discusses Spinoza’s pantheism and states that he was not guilty of two of the big heresies: (1) regarding God as a corporeal being, or (2) avodah zarah. He was simply in error, and that was because he didn’t properly investigate matters. R. Hirschensohn even admires the way Spinoza stuck to his beliefs despite the persecution he suffered. He refused to give in to his opponents as from his perspective to do so would be a form of falsehood and idolatry. In other words, Spinoza and his opponents were equally well intentioned. In fact, all of them, including Spinoza, were tzaddikim! They simply had different perspectives on reality…
According to R. Hirschensohn, Spinoza made mistakes in his understanding of God, but this does not mean he was a heretic, since there is no obligation on Jews to investigate the nature of God. In other words, since there are no principles of faith regarding the nature of God, one such as Spinoza who errs in this matter cannot be regarded as a heretic as he has not uprooted any basic Jewish principles…
Following this, R. Hirschensohn states that since neither the Torah nor the Sages require that the masses educate themselves in philosophical matters, one cannot regard them as heretics for not being sophisticated in this area. The upshot of this, according to R. Hirschensohn, is that Rabad is correct in his criticism of Maimonides in Hilkhot Teshuvah 3:7. That is, an honest mistake even in basic theological matters does not render one a heretic.[8] What this means is that Spinoza also cannot be regarded as a heretic (and his mistake was not even in an ikar emunah). R. Hirschensohn concludes by saying that in Heaven both Spinoza and his opponents have made peace with one another (p. 118).
