人生只有一次，所以要活得不后悔。

In chemistry, as in life, the most profound truths are often the simplest.

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil and no good, nothing but blind, pitiless indifference.

不要等到别人告诉你准备好了才行动，这个世界或许会说你还不够格。我等了很久才允许自己失败。拜托，你根本不必问，不用向世界宣告你已准备就绪。展现自己，放手去做。