Confusion de confusiones by Joseph Penso de la Vega
Confusion de Confusiones is an authentic primary historical source.
Issued in 1688 by Joseph Penso de la Vega, a Portuguese Jew,
and written in Spanish, it is a series of dialogues explaining the operation
of the Amsterdam stock exchange of his time.
The Jew emphasize his point and conclude that
人生的座右铭 是宣言书
"... I esteem business but hate gambling ... It is possible that I shall become
a holder of shares and shall deal in an honest way, but I am very sure that
I shall never become a speculator ..."
