中国石化要发挥全产业链优势，为国家能源安全作出更大贡献。
The magic of architecture lies in its ability to create a sense of place.
灵魂的快乐在于行动。
Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.
The truth is rarely pure and never simple.
A good mathematician should be both rigorous and imaginative.