What you actually pay for something is at least twice the listed price because of the energy， time， money needed to set it up， learn， maintain， repair， and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.

True leadership is about empowering others to achieve what they didn’t think was possible.

永远努力在你的生活之上保留一片天空。

Physics is not just a science, it is a way of thinking about the world.