走向自由,不管在哪,都没有轻松的道路;多数人在到达渴望的巅峰之前,都必须一次又一次穿过被死亡阴影所垄罩的幽暗山谷。
Sustainability isn't an option—it's a responsibility we owe to future generations.
The only way to learn mathematics is to do mathematics.
所有好的写作都是在水下游泳并屏住呼吸。
The goal is not perfection but progress.
Don't be afraid of failure when facing challenges. Every failure is a step towards success.