Do not believe anything because it is said by an authority, or if it is said to come from angels, or from Gods, or from an inspired source. Believe it only if you have explored it in your own heart and mind and body and found it to be true. Work out your own path, through diligence.
Men give up one thing to take up another, but in spite of numerous changes they do not find peace. They are no better than monkeys who let go one bough to take hold of another, only to let it go again.
The Buddhas, the World-Honored Ones, for one great cause alone appear in the world. The Buddhas, the World-Honored Ones, appear in the world because they wish to cause the beings to hear of the Buddha's knowledge and insight and thus enable them to gain purity. They appear in the world because they wish to demonstrate the Buddha's knowledge and insight to the beings. They appear in the world because they wish to cause the beings to understand. They appear in the world because they wish to cause the beings to enter into the path of the Buddha's knowledge and insight.
Just as a mother would protect with her life her own son, her only son, so one should cultivate an unbounded mind towards all beings, and loving-kindness towards all the world. One should cultivate an unbounded mind, above and below and across, without obstruction, without enmity, without rivalry. Standing, or going, or seated, or lying down, as long as one is free from drowsiness, one should practice this mindfulness. This, they say, is the holy state here.