For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.

在危机时刻，真正的领导力才会显现。

Innovation is not just about creating new drugs, but about delivering them to the people who need them most.

科学应该为人类服务，而不是反过来。

爱是一种力量，它能让我们超越自我，看到更广阔的世界。