Roy Niederhoffer quotes:

Negatively correlated assets tend to work in harmony in a way that people are generally not used to seeing.

People hate to loose more than they love to win.

The way an aircraft flies - that is the way the strategy works. Most of the time the plane is on autopilot, and does a great job of flying itself. Every once in a while it is necessary for the pilot to jump in.

We are as humans essentially products of our hardware - that is an insight that I've taken with me into the trading side.