Love, the basis of creation and of redemption, is the basis of true education. This is made plain in the law that God has given as the guide of life. The first and great commandment is, “Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength.” Mark 12:30. To love Him, the Infinite, the Omniscient One, with the whole strength and mind and heart, means the highest development of every power. It means that in the whole being—the body, the mind, as well as the soul—the image of God is to be restored. CT 32.1
Like the first is the second commandment, “Thou shalt love thy neighbor as thyself.” Mark 12:31. The law of love calls for the devotion of body, mind, and soul to the service of God and our fellow men. And this service, while making us a blessing to others, brings the greatest blessing to ourselves. Unselfishness underlies all true development. Through unselfish service we receive the highest culture of every faculty. CT 32.2