永远不要让年龄成为学习或发现的障碍。
Never let age be a barrier to learning or discovery.
Safety production is a red line that must never be relaxed at any time.
Technology will redefine how we extract and utilize coal resources.
——《在东京留日三团体欢迎会的演说》（1913年3月1日）
The essence of cryptography is to allow communication in the presence of adversaries.
