"Early in 1943 I got full time war research work... My first project was to evaluate long term weather forecast. Longe range, in that time, meant three to four days."

“A time series is a sequence of observations, usually ordered in time, although in some cases the ordering may be according to another dimension. The feature of time series analysis which distinguishes it from other statistical analysis is the explicit recognition of the importance of the order in which the observations are made. While in many problems the observations are statistically independent, in time series successive observations may be dependent, and the dependence may depend on the positions in the sequence. The nature of a series and the structure of its generating process also may involve in other ways the sequence in which the observations are taken.”

“was the major interest for me... I did have a contact with Oscar Morgenstern... Von Neumann was developing theory of games at the time... but I must say, I really didn't understand it very well when he lectured it.”