看着我，每个人的脸上都有印记。你第一次手术时，我长了这条皱纹，最后一次手术时，我长了这些皱纹。这张地图会为我们指引方向。而这张地图标记着我们去过的地方，它绝对不是丑陋的。

The simplicity of nature is not to be measured by that of our conceptions.

The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

最伟大的发现往往是许多小步骤的结果。