Currently Reading Lorenz describes — T Clark
This system thus exists a priori to the extent that it is present before the individual experiences anything, and must be present if experience is to be possible. But its function is also historically evolved and in this respect not a priori. — Lorenz - Behind the Mirror
If I'm understanding that right, then Lorenz is saying (at least in part) that what is
a priori to the individual is
a posteriori to the race, or species?
I suspect I'm not using the quote mechanism correctly; I meant to quote T Clark, quoting Lorenz.