The mind is the source of happiness and unhappiness by what it chooses to compare the experience with. If it chooses to compare it to something worse then it will create happiness, gratitude and pride but if it chooses to compare it to something better then it will create unhappiness, bitterness and envy.
Wherever there is possession of marks, there is fraud ; wherever there is no-possession of no-marks, there is no fraud. Hence the Tathagata is to be seen from no-marks as marks.
How can a troubled mind Understand the way? If a man is disturbed He will never be filled with knowledge. An untroubled mind, No longer seeking to consider What is right and what is wrong, A mind beyond judgements, Watches and understands. Know that the body is a fragile jar, And make a castle of your mind. In every trial Let understanding fight for you To defend what you have won.
By three things the wise person may be known. What three? He sees a shortcoming as it is. When he sees it, he tries to correct it. And when another acknowledges a shortcoming, the wise one forgives it as he should.
You should respect each other and refrain from disputes; you should not, like water and oil, repel each other, but should, like milk and water, mingle together.