The greatest discovery of any generation is that a human being can alter his life by altering his attitude.

The living moment is everything.

The beauty of computer science is that it allows us to create worlds within worlds, limited only by our imagination.

A miner's skill and dedication are just as valuable as the coal they bring to the surface.

人之所以为人，是必须充满精力，自我悔改，自我反省，自我成长，并非向人抱怨。