Dickstein's teacher had been a student of Cauchy in the early nineteenth century, and he still considered Poincaré, who died in 1912, a bright young man.
Dickstein ng guro ay nagkaroon ng isang mag-aaral ng Cauchy sa maagang ikalabinsiyam siglo, at siya pa rin itinuturing Poincaré, na namatay sa 1912, isang maliwanag binata.