I receive quotes by J.C. Ryle by email, and the following quote was such an inspiration and challenge to me that I want to share it here:
"Settle it down in your mind that you will aim at the highest degree of holiness, spiritual-mindedness, and consecration to God—that you will not be content with any low degree of sanctification. Resolve that, by the grace of God, you will make Christianity beautiful in the eyes of the world. Remember that the children of the world have but few patterns of true religion before them. Oh, that every true Christian would recollect that he is set as a lighthouse in the midst of a dark world, and would labor so to live that every part of him may reflect light, and no side be dim!"