When you have read the Bible, you will know it is the word of God, because you will have found it the key to your own heart, your own happiness and your own duty.
Material progress and a higher standard of living bring us greater comfort and health, but do not lead to a transformation of the mind, which is the only thing capable of providing lasting peace. Profound happiness, unlike fleeting pleasures, is spiritual in nature. It depends on the happiness of others and it is based on love and affection.
Different men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.
The way to happiness is: keep your heart free from hate, your mind from worry. Live simply, give much. Fill your life with love. Do as you would be done by.