The world only exists in your eyes. You can make it as big or as small as you want.

The only way to achieve true freedom is through self-discipline.

The only way to achieve the impossible is to believe it's possible.

可以通过对过去事件的观察，形成对未来事件概率估计的一般规则。

悲伤不是线性的。它不会整齐地从否认走向接受。