Safety must remain our top priority in everything we do.
安全必须始终是我们所做一切的首要任务。
一个社会的真正考验在于它如何对待最脆弱的成员。
Our sweetest songs are those that tell of saddest thought.
科学中真正的创新往往来自开发让我们以全新方式看世界的工具。