In computer science, we often deal with problems that are easy to state but hard to solve.
——《在石家庄国民党交通部欢迎会的演说》(1912年9月21日)
教育不是为了生活的准备,教育就是生活本身。
The revolution is a long and arduous struggle, but with determination and unity, victory is certain.
革命是一场漫长而艰苦的斗争,但只要有决心和团结,胜利是必然的。