xxx: I'm solving a problem in physics here - but, fucking, lazy - you don't have a book - it's called... there it's sort of disassembled?
YYY: There is. Catch the reference.
...
YYY: So what did you do?
xxx: Oh - I looked - there are six pages of formulas - so it became lazy in the book to understand - I thought and I did it myself.
Yyy: Really Russian approach however!