Here are some quotes from various web pages I found describing Ariens:

Ariens are always overflowing with ideas, schemes and plans to conquer the world, for a well-aspected sun in Aries radiates power and vitality. Many a moth has been burned in its flame! Life, of course, is one long party (which the more mothlike among us may find a just little wearing...).

The emblem for Aries is the Ram, a determined fighter and a powerful adversary, with a strong urge to express himself over the widest possible field of endeavour. Is the grass greener on the other side of the hill? Of course it is, isn't it, Aries?

Creative Aries, a cardinal sign, loves to be the leader and can organise fantastic and impressive ventures. Unfortunately, despite their desire to be the front-runner in all they do, sometimes they do get bored with the whole affair and can just wander off, or sit back and allow the lesser folk to have their way. This can see the whole house of cards collapsing, but happily their enthusiam is easily roused and when they set their minds to it they can inspire others to stick to those essential jobs that sometimes seem no more than the merest details to the noble Ram.

Aries are all extremists and for this reason can fall prey to stress-related ailments and mental problems. However, although Ariens can be highly-strung, their great fund of energy enables them to survive where other less exuberant folks might succumb.

Have you ever noticed in a class when a teacher asked a question, one or maybe two of the most enthusiastic students will jump up with their hands raised? These live wires, in all probability, are Ariens. Those born under this Sign are often called the pioneers of the Zodiac, and it's their fearless trek into the unknown that often wins the day. The Arien is a bundle of  energy  and  dynamism,  

It's important to keep in mind that Aries men and/or Aries women don't do well with hidden subtleties and undercurrents. If you want your Aries lover to do something special for you, then don't drop gentle hints and expect him or her to "pick up on it." Spell out exactly what you're needing and/or wanting in plain, simple language. Your Aries lover will appreciate, respect, and love you for it - and you'll likely end up getting exactly what you're asking for. (Actually, this advice works pretty darn well when dealing with any and all men, regardless of their Zodiac sign.)

 Love 'em and leave 'em. Since a big part of Aries loves the adventure and challenge of the chase - once Aries has actually caught you, Aries isn't always sure what in the heck to do with you. Come clean, Aries! All that day to day relationship stuff sure does getting boring, doesn't it?   But when it comes to the day to day, mundane hard work of maintaining a relationship - this is when Aries can dig in, truly shine, and prove themselves to be a shining warrior. Your Aries lover is also likely to have a wee bit of a quick temper.