Boys and girls often look at learned men and women and think that when they get to be as old and to know as much as these people, that then they will know everything. But that is a great mistake. The more we know and the more learned we are, the more we discover that there is still further beyond us that which we do not understand. No one has ever been able to tell how the bread and the meat and potatoes and other food which we eat is made to sustain our life, how it is converted into and made a part of ourselves. How on our heads these things become, or are changed into hair, on the ends of our fingers to nails, and how other parts become flesh, and bone and eyes and ears and teeth. Nobody can understand how the ground in the garden can be changed by some life principle into fruit and vegetables and flowers and hundreds of different things, and yet all this wonderful variety, all growing out of the very same soil, or ground as we call it. And so as you grow older and become more and more learned you will come more and more to appreciate how much there is that you can never understand. There is mystery all about us, and we all need the light of divine truth, the light of God's Word, the Bible as a light to guide us through the darkness and the mysteries that are all about us. If you have ever been in the country upon a dark night and have seen the railway engine come dashing along, with the great headlight that throws the rays of light far down along the track enabling the engineer to see very far ahead of him, you would understand what the Bible purposes to do for us, when God says that He will make it a lamp unto our feet, and a light unto our path. As you grow older, and sorrow and sickness and trials come to you, you will need God's Word to be a lamp unto your feet. And when at last the messenger of death shall come and summon you into God's presence, and you go through "the valley of the shadow of death," you will then need this lamp for your feet, and you will need the Lord Jesus Christ with you, that you may lean upon Him and that you may say as David did: "Yea though I walk through the valley of the shadow of death, I will fear no evil, for thou art with me, thy rod and thy staff they comfort me." May God give you this light through the journey of this life, and bring you to that city of light and life on high.