*In Dead Poets Society, John Keating (Robin Williams) describes "professions" as 'noble pursuits, and necessary to sustain life'. These notes are to appraise those noble pursuits. The part about Curiosity is there because I just can't help it.
Engineers. These people build machines, write programs, and make the two work together. They make it their problems to invent instruments that strengthen our routines by speed or power (or both). They make stuffs that imitate our bodies, and maybe, given time, our souls. Some of these toys even do things that are beyond us, like that curious rover that is now feeding us pictures from the grounds of Mars. Engineers profess by reflecting. What our biology enables us, or doesn't, inspire them. Many times we don't really get what they offer us, so they put metaphors that ring true to nature in their advertisements to help us understand.