No Ajahn Chah《112》

《112》實際上，快樂是痛苦的偽裝，可是在這種細微的形態里，你看不見它。如果你執著快樂時，就如同執著痛苦一樣，但是，你並沒有察覺到。當你執取快樂時，要丟棄它本有的苦性是不可能的；它們是如此的不可分離。因此，佛陀教導我們要認識苦，將苦視為快樂里所具有的傷害；視它們(苦與樂)為平等的。因此，小心！當快樂生起時，不得意忘形；當痛苦生起時，不要沮喪，別讓自己迷失在其中，視它們同具有同等的價值。

In truth, happiness is suffering in disguise but in such a subtle form that you don』t see it. If you cling to happiness, it』s the same as clinging to suffering, but you don』t realize it. When you hold on to happiness, it is impossible to throw away the inherent suffering. They』re inseparable like that. Thus the Buddha taught us to know suffering, see it as the inherent harm in happiness, to see them as equal. So be careful! When happiness arises, don』t be overjoyed, and don』t get carried away. When suffering comes, don』t despair, don』t lose yourself in it. See that they have the same equal value.