I ran across a great quote to think upon by Hannah Whitall Smith and wanted to share it:
"A quiet spirit is of priceless value when performing outward activities. Nothing so greatly hinders the work of God's unseen spiritual forces, upon which our success in everything truly depends, as the spirit of unrest and anxiety.
There is tremendous power in stillness. A great believer once said, "All things come to him who knows how to trust and to be silent." This fact is rich with meaning, and a true understanding of it would greatly change our ways of working. Instead of continuing our restless striving, we would "sit down" inwardly before the Lord, allowing the divine forces of His Spirit to silently work out the means to accomplish our goals and aspirations.
You may not see or feel the inner workings of His silent power, but rest assured it is always mightily at work. And it will work for you, if you will only quiet your spirit enought to be carried along by the current of its power."
Okay, so that was more like a dissertation than a quote...but nevertheless, good stuff!