求翻译：月满则亏，水满则溢，得到中总会失去些什么这是世之常理，所以，在生活中面对失去的我们应该保持一颗平常心。是什么意思？

Months with the loss, water with spill, get common sense to always lose what it was in the world, so lost in life, we should keep a calm.