"Nobody trips over mountains. It is the small pebble that causes you to stumble. Pass all the pebbles in your path and you will find you have crossed the mountain." Author Unknown
For many people (me included) sometimes our goals seem so overwhelming that when we have a small setback this gives us permission to give up. Do you set goals? If you don't how do you know if you've had a success? If you stumble do you try harder? Or do you give up? My big pebble is procrastination and even though I've been working towards a less procrastinating nature it has always been a struggle. Check out some of these books if you need a little motivation.
The Writing Nag