The essence of computational complexity is to understand the limits of what can be computed efficiently.

Nonviolence is a powerful and just weapon which cuts without wounding and ennobles the man who wields it.

农业成功的真正标准不仅是产量，还有生产它的生态系统的健康。

乳制品的未来在于可持续的实践和以消费者为导向的创新。