You should be unconcerned about short-term price action when you own the securities directly, just as you were unconcerned when you owned them indirectly through BPL. I think about them as businesses, not "stocks", and if the business does all right over the long term, so will the stock.
Warren BuffettThe dominant factors affecting control valuations are earning power (past and prospective) and asset values.
Warren BuffettThe range of derivatives contracts is limited only by the imagination of man (or sometimes, so it seems, madmen). Say you want to write a contract speculating on the number of twins to be born in Nebraska in 2020. No problem-at a price, you will easily find an obliging counterparty.
Warren BuffettFailing conventionally is the route to go; as a group, lemmings may have a rotten image, but no individual lemming has ever received bad press
Warren Buffett