Einhorn is known for sometimes successfully betting against companies like Allied Capital in 2002 and Lehman Brothers, ahead of its bankruptcy.

FORBES: David Einhorn

Yes, the SEC has sometimes successfully prosecuted the proprietors of sham newsletters that touted stocks with bogus claims while secretly accepting payments from the companies being hyped.

WSJ: Review & Outlook: Payback for a Downgrade?

We may sometimes be frustrated by our limited ability to successfully invest as many patients in behavioral changes, as we might wish.

FORBES: Shift Work Can Lead to Increased Risk of Heart Attack and Stroke