Moon opposite Mercury in the natal chart symbolizes an inner conflict between thoughts and feelings. Others will observe this as a person who can be overly analytic one moment, then over-emotional and irrational the next. This challenging aspect can cause a lifelong challenge to find an inner balance, to reach a tranquil state of mind. With challenging aspects from other planets, this polarity may cause nervous ailments. You can see in the list of celebrities with this aspect, that the key to overcoming the potential downsides can be found in keeping busy and productive, channeling the insight of the Moon and the intellect of Mercury into public communication. Actors and artists such as Mary Tyler Moore, share their talents by communicating to a large public audience. Alexander Graham Bell found the ultimate expression of Moon opposite Mercury by inventing the telephone. Sharing your insights and feeling to as many people as possible is the goal.