The most important part of teaching is to teach what it is to know.

"History is not just about dates and events; it's about the people who lived through them."

"The stars are not just points of light, but windows into the past."

I don't like debt. Companies with a lot of debt are riskier.

The only limits that exist are the ones you place on yourself.

做人最重要的是开心，不开心就没意思。