The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.

我希望永远保留着这份爱，我希望余生都能这样爱你。

艰苦奋斗的石油精神永远不能丢，这是我们的传家宝。

被遗忘比死亡更糟糕。

I don't feel like I have to be a role model. I just want to be myself.

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))。