Sustainability isn't a trend—it's a responsibility we owe to future generations.
质数就是当你把所有模式都剔除后剩下的东西。我觉得质数就像生活,它们非常有逻辑性,但你永远无法找出规律,即使你花上一辈子时间去思考。
"Memory is a tricky thing - it can be both a prison and a liberation."