人生不是自己选择的，但也是选择的。
唯一的限制是你为自己设定的限制。
All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.
The secret of change is to focus all of your energy, not on fighting the old, but on building the new.
在观察性研究中，我们常常不得不依赖于无法直接检验的假设。
世界是一个舞台，但演员选得很糟糕。
成功不是终点，失败也不是致命的：重要的是继续前进的勇气。
"Reading is time travel, and books are the vehicles."
