数学的本质不仅在于解决问题,还在于提出正确的问题。
土地教会耐心;市场教会敏捷。
过去从未死去,它甚至还没有过去。
Sustainability isn't an option - it's our responsibility to future generations.
"The stories we tell about ourselves and others have the power to shape our understanding of the world."