Personal freedom is important and these folks are likely to stand up for they you believe in, and it is likely that there is a generous impulse and they usually want immediate answers in their quest for knowledge and understanding. Those with this placement may form beliefs quickly and they can spread enthusiasm fast, but some astrologers believe that they can take a "rules don't apply to me approach" when feeling self-righteous. Jupiter in Aries is an out-going combination and they expand by trying new things.
An individual with Jupiter in Aries tends to be enthusiastic about philosophy, politics, political issues and higher education. The person tends to identify strongly with his or her perceptions, and they are usually eager to explore and grow into new territory, whether physical or intellectual or both. Wherever Jupiter in Aries is placed they are likely to push the limits and expand in new directions.