数学的美在于它揭示隐藏的对称性和真理的能力。
Thinking is the hardest work there is, which is probably the reason why so few engage in it.
Never stop innovating, never stop improving.
石油化工行业要顺应能源转型趋势，积极拥抱绿色低碳发展。
The ultimate search engine would understand everything in the world. It would understand exactly what you meant, and it would give you back exactly what you wanted.
The past is a fire that never stops burning.
