知識總是會勝過無知。
3. It is sustainable as long as the world economy continues to grow.
隻要世界經濟持續增長，德國的經濟複蘇肯定能持續下去。
Now a Try
What’s your feeling after reading the passage？
鳥兒向往廣闊的天空，魚兒眷戀浩瀚的海洋。然而，隻有迎風而上或是破浪前行，鳥兒才能自由飛翔，魚兒才能盡情遊暢。人生亦是如此，隻有經曆過艱難坎坷，才能獲得向往的生活。
第一章 Chapter Four幸福的人生不貪婪——窗外的芙蓉樹
The Trees Outside My Window
Read the article quickly and answer the following questions.
1. Why did the author regard the hibiscus tree as her best friend？
2. Why did the author feel surprised when she saw the blossom plum tree？
From the window of my room， I could see a tall cotton-rose hibiscus. In spring， when green foliage was half hidden by mist， the tree looked very enchanting dotted with red blossom. This inspiring neighbor of mine often set my mind working. I gradually regarded it as my best friend.
Nevertheless， when I opened the window one morning， to my amazement， the tree was almost bare beyond recognition as a result of the storm ravages the night before.Struck by the plight， I was seized with a sudden saddens at the thought “all the blossom is doomed to fall”. I could not help sighing with emotion： the course of life never runs smooth， for there are so many ups and downs， twists and turns. The vicissitudes of my life saw my beloved friends parting one after another. Isn’t it similar to the tree shedding its flowers in the wind？
This event faded from my memory as time went by. One day after I came home from the countryside， I found the room stuffy and casually opened the window.Something outside caught my eye and dazzled me. It was a plum tree all scarlet with blossom set off beautifully by the sunset. The surprise discovery overwhelmed me with pleasure. I wondered why I had no idea of someunyielding life sprouting over the fallen petals when I was grieving for the hibiscus.