David Stephens

Personal portfolio and knowledge management platform.

Portfolio Management
Track investments and analyze performance
Knowledge Library
521 books and highlights
Quotes Collection
73 curated quotes
Featured Quote

"Goodhart's law states that once a certain indicator of success is made a target of a social or economic policy, it will lose the information content that would qualify it to play such a role."

Charles Goodhart , 1975
Featured Highlight

"Dr. Patrick introduced me to using teeth for stem-cell banking. If you are having your wisdom teeth removed, or if your kids are losing their baby teeth (which have a particularly high concentration …"

Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-Class Performers by
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