The secret to success is to start before you're ready.
成功的秘诀是在你准备好之前就开始行动。
进步主要取决于人类本性中最强大而不仅仅是最高尚的力量能在多大程度上被用来增加社会福祉。
The only limit to our realization of tomorrow will be our doubts of today.