Keep your mouth shut, and close up the doors of sight and sound, and as long as you live you will have no vexation. But open your mouth, or become inquisitive, and you will be in trouble all your life long.
LaoziEmpty your mind of all thoughts. Let your heart be at peace. Watch the turmoil of beings, but contemplate their return. Each separate being in the universe returns to the common source. Returning to the source is serenity. If you don't realize the source, you stumble in confusion and sorrow. When you realize where you come from, you naturally become tolerant, disinterested, amused, kindhearted as a grandmother, dignified as a king. Immersed in the wonder of the Tao, you can deal with whatever life brings you, and when death comes, you are ready.
Laozi