过去在我心中跳动，像第二颗心脏。

坚持是解开医学之谜的关键。

The line between good and evil is permeable and anyone can cross it when pushed by circumstances.

The secret of change is to focus all of your energy not on fighting the old, but on building the new.

世界文明的命运取决于为全人类提供体面的生活水平。

In business, if you're not moving forward, you're falling behind.