Our belief in other minds appears to be grounded solely on the observed link between behaviour and mentality in our own case.

Finally, in Stern 2000, it is argued that modest transcendental arguments can be shown to be useful against skepticism, once we distinguish sufficiently carefully between the kinds of skepticism there are, and go for the right target or targets—where a less demanding form of skepticism may perhaps be defeated by a less ambitious transcendental claim. So, for example, if we take the target to be a skeptic who demands certainty, then a modest transcendental argument will not suffice. But if we tak