I chose Smalltalk, not because its a language I get to use every day, or have even used a lot, but it has influenced two of the languages I'm most productive in

I chose Smalltalk, not because its a language I get to use every day, or have even used a lot, but it has influenced two of the languages I'm most productive in, and from it has sprung foundational technologies which nearly all developers (especially those who program VM targeted languages) have been able to take advantage of. It was one of the first languages I used which really introduced me to a completely different way of problem solving and thinking about the structure of a program. I know that language was probably Lisp/Scheme for a lot of people, but for me it was Smalltalk. Implementing control structures without language keywords!? Operators implemented using the same message passing techniques as any other method call!? Querying any instance for its implementation and documentation at runtime!?