We must be brave to face challenges and dare to break through ourselves.
我们要勇于面对挑战,敢于突破自我。
世界上有开朗的悲观主义者吗?我就是这样的人。
每次联络别人的时候,要给他们带去一个祝福;这样他们才会在你给他们带去麻烦的时候感到开心。
The future belongs to those who prepare for it today.
The joy of mathematics comes from the moments of clarity when complex things become simple.