Faith means self-confidence. The secret of faith is that it can be used as a medicine, and it will be better than medicine; it can be wealth, and greater than wealth; it can be a religion, and greater than religion; happiness, and greater than happiness. For nothing can buy or sell faith. If there is anything that can be called the grace of God, it is faith and self-confidence. It is something one can neither teach nor develop; it must be in one, and one can only strengthen it by loving it, by enjoying it. It must develop by itself.