It wasn't good enough today, so after the season I'm going to go home and rest a little bit and I'm going to work harder than ever,".

VOA: standard.2009.08.21

So I went back to Engineering and told them, "OK, guys, we need to work harder. And I'm not under CEO.

于是我跟工程师团队说到，大家还要加把劲。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

The fact that I'm enjoying myself makes it easier for me to work harder.

我很享受的事实,让我更容易努力工作。

耶鲁公开课 - 死亡课程节选

I need to work even harder."

我还需要更努力地训练“

哈佛公开课 - 幸福课课程节选