Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.

实现明天理想的唯一障碍是今天的疑虑。

Shame is the most intimate feeling, yet it connects us all.

The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history. Then have somebody write new books, manufacture a new culture, invent a new history. Before long the nation will begin to forget what it is and what it was.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.