能源需求与环境保护之间的平衡是我们这个时代的挑战。
The balance between energy needs and environmental protection is the challenge of our time.
The challenge in learning is not just to memorize, but to generalize from specific examples to broader concepts.
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
坚持志向就像心痛一样，心思全在痛处，哪有时间说闲话、管闲事。
The distance between two cultures is where the most interesting things happen.
If you don't give up, you still have a chance. Giving up is the greatest failure.
避免争论是赢得争论的唯一方法。
You control your future, your destiny. What you think about comes about. By recording your dreams and goals on paper, you set in motion the process of becoming the person you most want to be. Put your future in good hands — your own.