I liked Smalltalk because the language implementation provided source code for all the IDE tools: examples of how to build rich GUIs when that was new. I liked

I liked Smalltalk because the language implementation provided source code for all the IDE tools: examples of how to build rich GUIs when that was new. I liked Smalltalk because I could watch people working with a prototype and learn how to transform the work they were doing. I liked Smalltalk with ENVY/Developer because I could see when someone created new unreleased editions of methods on classes that I'd changed, talk with them, resolve clashes, merge and release, in a tight development cycle.