What attitudes toward Jesus are acceptable for a Jew? I understand that idolatry, or embracing the mainstream Christian perception of Jesus as divine, is absolutely out of the question. Furthermore, there are strong textual and cultural reasons that Jews should not consider Jesus to be Moshiach. However, is it acceptable to revere or even love Jesus? To appreciate his teachings to any degree? To consider him righteous, a tzaddik, or a good person?
(Please note: I am not asking "Was Jesus actually righteous/a tzaddik/worthy of reverence by a Jew?" But since that question will inevitably encroach on mine, I would like to mention that the "New Testament" contains wildly disparate reports of what Jesus actually taught during his lifetime. Whereas some gospelists portray Jesus as rejecting halacha, other accounts, including his most famous sermon, quote him as insisting categorically that halachic observance must be maintained in its entirety. What Christians actually did with that information is, I think, irrelevant to this question.)