Listen to everyone in your company and figure out ways to get them talking. The folks on the front lines—the ones who actually talk to the customer—are the only ones who really know what's going on out there. You'd better find out what they know.
A mathematician's work is never truly finished; there is always more to explore.
Sustainability isn't an option; it's a responsibility.
活着是世界上最罕见的事,大多数人只是存在,仅此而已。