The half-life of love is forever.
I think of a hero as someone who understands the degree of responsibility that comes with his freedom.
外交家应该具备灵活性和适应性，以应对快速变化的国际环境。
In the end, survival is about the will to live. It's about the human spirit.
The elegance of a theory is not just in its mathematical formulation, but in its ability to connect disparate phenomena under a unified framework.