``Although this Guide provides a framework for assessing uncertainty, it cannot substitute for critical thinking, intellectual honesty, and professional skill. The evaluation of uncertainty is neither a routine task nor a purely mathematical one; it depends on detailed knowledge of the nature of the measurand and of the measurement. The quality and utility of the uncertainty quoted for the result of a measurement therefore ultimately depend on the understanding, critical analysis, and integrity of those who contribute to the assignment of its value''.Per quanto riguarda l'insegnamento, aggiungerei che per gli studenti la valutazione delle incertezze non dovrebbe essere una vessazione, essendo molteplici le finalità delle esercitazioni di laboratorio.