战斗越艰难，胜利就越甜蜜。
The harder the battle, the sweeter the victory.
从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。
"Every discovery in science is a step closer to a cure."
Iteration is the key to innovation. You have to keep refining and improving your ideas until they work.
城市就像一篇文章，它会向那些能够阅读它的人说话。
黑云受到光的接吻时，就变成了天上的花朵。
Science progresses by constantly questioning and refining our understanding.