因果视角是解开宇宙之谜的关键。
The causal perspective is the key to unlocking the mysteries of the universe.
当我看着这个世界时，我是悲观的，但当我看着人们时，我是乐观的。
To be brave is to love someone unconditionally, without expecting anything in return.
The joy of discovery is not in the recognition but in the knowledge that you’ve contributed something meaningful.
