数学的研究对科学的发展就像空气或水一样。
When you open your heart to positivity, you open your mind to possibilities.
恋爱是艰苦的,不能期待它象美梦一样出来。
"Every film set is a new world, a new reality to explore and understand."
现在不是轻松舒适的`时候.现在是大胆和忍耐的时候。