The more you run, the more they chase.

 我从未遇到过一小时阅读不能解除的痛苦。

The past is a foreign country; they do things differently there.

Collaboration across industries and borders is essential if we want to address the global challenges of food security.

Liberty is the right to do what the law permits.

The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay between topology and symmetry leads to novel quantum states of matter.