Energy best describes work.
introspective, curious
René Descartes was a French philosopher, mathematician, and scientist. He held various positions such as a soldier, tutor, and freelance philosopher. Descartes is best known for his work in philosophy, particularly his contributions to modern philosophical thought.
competitive
he's work for a teacher
all of these are correct
Descartes was a mathematician and a philosopher, not a scientist. Of course, his work in mathematics has been very useful to science.
responsible
communicates work expectations
he considered the bureaucracy
Analytic geometry.
a work of literature that tells a story. (A+)