當一扇幸福的門關上時，另一扇門就會打開。
When one door of happiness closes, another opens.
Helen Keller

沒有悲傷的平衡，”快樂”將失去意義。
Even a happy life cannot be without a measure of darkness, and the word “happy” would lose its meaning if it were not balanced by sadness.
~ Carl Jung