Nice post. Cool for an engineer (like me) who is about to begin his career. However, "Be useful to somebody; be a burden to no one." also works for engineering (I feel like you may be implying some service oriented industry). I think that's what engineers (hardware/software) ultimately find fulfilling: the promise of doing something cool that ultimately benefits thousands if not millions and allows them to derive joy from.. a series of if-else statements or some logic gates tied up in cool ways
Politics: A strife of interests masquerading as a contest of principles. The conduct of public affairs for private advantage. -- Ambrose Bierce