"In the end, we will remember not the words of our enemies, but the silence of our friends."

科学是人类思想最伟大的冒险。

A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.

To enjoy freedom we have to control ourselves.

Perception is an active process where the brain constructs meaning from sensory input.