Any general principles for taming the bishop pair?

Trading a N/B for one of their Bs is often not an option. 

you kill one of them or both of them

or you use your pawns or pieces to limit their activities

Keep the position closed as much as posible, and especially take care not to open lines of attack on your King for the Bishops.

End it in the middlegame.

Turn them against each other.

https://en.wikipedia.org/wiki/East%E2%80%93West_Schism

Green hat, green tunic, sword, shield, white tights... I'm not seeing the problem here.

Not helpful, related, or possible.

To answer my own question and help others who are trying to figure it out as well. Below is link and quote.

https://en.wikibooks.org/wiki/Chess_Strategy/Minor_pieces

So it was Nimzowitsch, one of the greatest chess thinkers, who formulated the plan to beat the bishop pair. Do one of these three things:

1. Arrange a pawn blockade so as to limit the scope of the opponent's bishops.

2. Conquer support squares for the knights so you can make your knights at least equal to the bishops.

3. Exchange off one of the bishops (preferably the good one, if there is a bad one) so as to diminish the value of the remaining bishop.

You live in your world of limitations. Unicorns exist in mine, and I ride one to and from work. It brews drip coffee through its horn and can almost beat me at Turkish checkers, but not quite.

One day.