The only limit to our realization of tomorrow will be our doubts of today.
The most damaging phrase in the language is: 'We've always done it this way.'
学习新编程语言的唯一方法是用它编写程序。
——在广州全国青年联合会演说，1923年10月21日
The thought of death should usher us towards whatever happens to matter most to us; it should lend us the courage to pursue the way of life we value in our hearts.
The man with a toothache thinks everyone happy whose teeth are sound. The poverty-stricken man makes the same mistake about the rich.