The beauty of topological insulators lies in their robustness; their surface states are protected against disorder and imperfections.
建筑师必须是一位老师。
可持续发展不仅仅是保护树木,更是确保人类与自然都能繁荣的未来。
The mind is divided into parts that sometimes conflict. Like a rider on the back of an elephant, the conscious, reasoning part of the mind has only limited control over the automatic, emotional part.