Life is like a cup of tea, it won't be bitter forever, but it will be bitter for a while.
The past is always tense, the future perfect.
当今世界面临的最重要挑战是在发展中国家建立强大、有效且负责任的国家。
Develop into a lifelong self-learner through voracious reading.cultivate curiosity and strive to become a little wiser every day.