If you understood a business perfectly and the future of the business, you would need very little in the way of a margin of safety. So, the more vuln… - Warren Buffett

In terms of cryptocurrencies, generally, I can say with almost certainty that they will come to a bad ending.

At Berkshire, we will continue to look for business-savvy directors who are owner-oriented and arrive with a strong specific interest in our company. Thought and principles, not robot-like “process,” will guide their actions. In representing your interests, they will, of course, seek managers whose goals include delighting their customers, cherishing their associates and acting as good citizens of both their communities and our country. Those objectives are not new. They were the goals of able CEOs sixty years ago and remain so. Who would have it otherwise?

"Furthermore, we do not think so-called EBITDA (earnings before interest, taxes, depreciation and amortization) is a meaningful measure of performance. Managements that dismiss the importance of depreciation - and emphasize "cash flow" or EBITDA - are apt to make faulty decisions, and you should keep that in mind as you make your own investment decisions,"