It is probably true quite generally
that in the history of human thinking the most fruitful developments frequently
take place at those points where two different lines of thought meet.
These lines may have their roots in quite different parts of human nature,
in different times or different cultural environments or different religious
traditions: hence if they actually meet, that is, if they are at
least so much related to each other that a real interaction can take place,
then one may hope that new and interesting developments may follow.