In the activity of intellectual life common to all awakening and thoughtful minds it is inevitable that doubts will arise concerning the worthiness of Christianity. Every age finds the special doubts of its own age peculiar to itself. In this present age questions are in the air concerning the authorship of the Bible, concerning the person of Christ, and concerning the authenticity of the records of Christ's earthly ministry. Men are asking whether this world is impelled by a blind, resistless, heartless force, whether we are merely a mass of atoms, whether we may be delivered from the thraldom of sin, and whether when we die we become dust and dust alone. What shall we do in the face of all these questions? _Keep the windows of our souls open to the beliefs that are best for our life's grandeur and for humanity's uplift._ That is what we may do, what we should do, and what if we so do, will invariably lead the mind to a higher and higher valuation of the pre-eminence of Christianity. Daniel kept his windows open to the best _commands_ of the best religion. His daily surroundings from the hour as a youth he entered the king's palace at Babylon were demoralizing. The ideals of his associates were low. The religious life of his fellow-students was a mere form. Domestic life all about him was unsound. Public life was dishonest. Looseness of character everywhere prevailed. Impurity was alluring. Bribery was considered a necessary feature of authority. The weak were crushed by the mighty. Selfishness characterized both king and people. The difficulty of his position was great: to breathe malaria and not be affected by it. He was in the whirl of worldliness and still he must not be made dizzy thereby. His one resource for safety was his daily consideration of the commands of God. Those commands charged men to be upright, to be clean, to do duty faithfully, even though it was duty to a heathen master, and to make life serviceable to the welfare of others. Again and again all through the years of his exile it was necessary for his soul's welfare that he should ponder these commands of God and not let the atmosphere that surrounded him lower and destroy his ideals.