When public speaking， pause frequently. Pause before you say something in a new way， pause after you have said something you believe is important， and pause as a relief to let listeners absorb details.
孔子说：“不怕没人了解自己，就怕自己不了解别人。”
The past is not dead, it is not even past.
Life is not like cooking, where you can prepare all the ingredients before you start cooking.
我认为生活中最重要的事情就是忠于自己。
Technology is only as useful as the people who use it.