代数几何是研究多项式零点的学科。
Sustainability isn't a trend—it's a responsibility we owe to future generations.
领导力就是今天做出艰难的决定，以创造更美好的明天。
The problem with socialism is that you eventually run out of other people's money.
太阳必须落下才能升起。
You don't manage people; you manage things. You lead people.
