AstrologicalDictionary.com

Aries, being the first sign, that of a new beginnings---adventurous, ambitious, impulsive, enthusiastic and full of energy. You love freedom, and will accept any challenge. You will get impatient if your ideas do not work out immediately and as expected. You are unwilling to follow someone else's suggestions, especially if they do not make sense to you. The Arian is a pioneer both in thought and action, very open to new ideas and a lover of freedom. They welcome challenges and will not be diverted from their purpose except by their own impatience, which will surface if they don't get quick results.
Aries subjects are courageous leaders with a genuine concern for those they command, being responsible people, it is rare that they will use their subordinates to obtain their own objectives as leaders, but occasionally it does happen. You often have excess energy which can make you aggressive. Arians are brave leaders who express care and concern for all they lead. However, an Arian as a follower is rare, and can be troublesome. They may be unwilling to obey or submit to directions for which they can see no reason, or with which they disagree. They are much concerned with self, both positively and negatively - self-reliant but also self centered (sometimes) and concerned with their own personal advancement and physical satisfaction. Their immense energy makes them aggressive and restless, argumentative occasionally, headstrong, quick tempered, easily offended and capable of holding grudges if they feel themselves affronted.
.Some Arians will act self-centered because they believe that their views are right, and anyone who conflicts with them is wrong. Because you are open and honest, you will make energetic and generous friends. Arians have trouble compromising which can lead to problems in otherwise smooth friendships