Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

"The city is a labyrinth of memories, and every street, every building, every corner holds a story waiting to be discovered."

But this long run is a misleading guide to current affairs. In the long run we are all dead.

做决定是困难的，也因此益发珍贵

知识在心灵中以符号结构的形式表征。