My favorite word is BELIEVE. The reason it is my favorite word is in just seven letters you get so much inspiration.

To me it says:
Believe In Yourself
Believe In Miracles
Believe All Things Are Possible
Believe You Can Make Your Dreams Come True
Believe All People Have Good In Them
Believe You Can Make A Difference
Believe One Step Forward Begins A Journey
Believe You Can ________ (fill in the blank)

In just seven letters you can gain the strength to do anything!