数学的美在于它的简洁性和普遍性。
The beauty of mathematics lies in its simplicity and universality.
Sustainability isn't a choice—it's a responsibility we owe to the next generation.
You are never too old to set another goal or to dream a new dream.
The challenge in computer science is not just to solve problems, but to understand why they are problems in the first place.
Writing is a way of preserving the truth.
Green mining and low-carbon utilization are the only way for the sustainable development of the coal industry.
