rather than casual explanations of the problem, it is usually more helpful to show the exact commands and output - for example, is this what you are seeing?
$ gst st> 'hello' printNl 'hello' 'hello' st> Transcript show: 'hello' ; cr hello Transcript the first line is the side-effect of execution (displaying the string) the second line is the evaluation of the message chain (the objects: 'hello' and Transcript) - think of those as the return result of function evaluation, in other languages - in both of those cases, the message chain evaluates to the receiver this is a common idiom for REPLs - it is a little more evident in ruby $ irb irb(main):001:0> puts 'hello' hello => nil irb(main):002:0> 'hello' => "hello" `puts 'hello'` prints the string, then evaluates to nil `'hello'` has no side-effect - it simply evaluates to itself
