Power resides where men believe it resides. It's a trick, a shadow on the wall. 
煤炭行业必须进化,否则就有被淘汰的风险。适应是生存的关键。
The study of automorphic forms is a testament to the power of symmetry in mathematics.
"A leitura é uma viagem sem fim, onde cada página é uma nova descoberta."
What we learn from history is that people don't learn from history.