長城全貌 The Great Wall (王潔茜提供) (02/25/15)

The Great Wall! Over the years, dust storms, winds and natural disasters wiped out the original Great Wall
until all traces of it had been completely destroyed. It was rebuilt in the 15th century and it now stands today.

Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power. Who say this? Start where you are, use what you have, do what you can.