A good friend forwarded me a (handwritten) manuscript by E.W. Dijkstra entitled Are “systems people” really necessary? Giorgos pointed out that it might already be archived in the E.W Dijkstra Archive. As a matter of fact it is EWD1095 [handwritten version here in pdf].
It is a classic EWD document, straight to the point, properly impolite and asking the right questions. Great advice for career and personal growth.