The more we learn about black holes, the more we realize how much we still don’t know.

Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

企业的成功不是靠数量，而是靠品质。

Life is not about waiting for the storm to pass, it's about learning to dance in the rain.

农业创新不仅仅是技术问题，更是改变思维方式和拥抱可持续性的问题。

Around computers it is difficult to find the correct unit of time to measure progress. Some cathedrals took a century to complete. Can you imagine the grandeur and scope of a program that would take as long?