Labor is the only source of wealth.

I always try to be positive and optimistic in life.

荒野中最危险的不是动物或地形。而是你自己的头脑。

Only two things in this world so that our souls are deeply shocked First, our brilliant stars overhead, First, our hearts lofty moral laws.

Success is not final, failure is not fatal: It is the courage to continue that counts.