有时候，最艰难的战斗是在我们自己的脑海中进行的。

解释：树立品德，莫如日积月累，不懈怠地培植；治疗疾病，莫如彻底消除，不留下任何病根。

"I think of painting as a kind of silent music."

The social responsibility of an enterprise is not just to make profits, but also to give back to society.

I stand up for what I believe in, and I don’t worry about what others think.

学习达到快乐的境界就成功了。