The theory of probability is the only mathematical tool available to help map the unknown and the uncontrollable. It is fortunate that this tool, while tricky, is extraordinarily powerful and convenient.
Benoit MandelbrotThe rare scholars who are nomads-by-choice are essential to the intellectual welfare of the settled disciplines.
Benoit MandelbrotThe techniques I developed for studying turbulence, like weather, also apply to the stock market
Benoit MandelbrotRegular geometry, the geometry of Euclid, is concerned with shapes which are smooth, except perhaps for corners and lines, special lines which are singularities, but some shapes in nature are so complicated that they are equally complicated at the big scale and come closer and closer and they don't become any less complicated.
Benoit Mandelbrot