他的Elementary Probability Theory with Stochastic Processes前言里写的：
"In the past half-century the theory of probability has grown from a minor
isolated theme into a broad and intensive discipline interacting with many
other branches of mathematics" 他的Elementary Probability Theory with Stochastic Processes前言里写的：
"In the past half-century the theory of probability has grown from a minor
isolated theme into a broad and intensive discipline interacting with many
other branches of mathematics"