The Way of Peace by James Allen.

"Let your meditations take their rise from the ethical ground which you now occupy. Remember that you are to grow into Truth by steady perseverance. If you are an orthodox Christian, meditate ceaselessly upon the spotless purity and divine excellence of the character of Jesus, and apply his every precept to your inner life and outward conduct, so as to approximate more and more toward his perfection. Do not be as those religious ones, who, refusing to meditate upon the Law of Truth, and to put into practice the precepts given to them by their Master, are content to formally worship, to cling to their particular creeds, and to continue in the ceaseless round of sin and suffering. Strive to rise, by the power of meditation, above all selfish clinging to partial gods or party creeds; above dead formalities and lifeless ignorance. Thus walking the high way of wisdom, with mind fixed upon the spotless Truth, you shall know no halting-place short of the realization of Truth." - James Allen.