To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

"Causal inference requires careful thought about the assumptions underlying your analysis."

Efficiency without ethics is just speed in the wrong direction.

The knowledge of the past stays with us to spur us on to new and better things.

The greatest enemy of a trader is hope. Hope is what keeps you in a losing trade.

No one can become fully aware of the very essence of another human being unless he loves him.