"The past is always present in our lives, shaping who we are and how we see the world."
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.
"The future of physics lies not in discovering new particles, but in understanding the deeper principles that govern the behavior of the particles we already know."
He who plants a tree plants a hope.
要理解人類，必先理解我們的起源。