云计算让算力像水电一样普及，但管理难度更大。
The key to success is to keep going even when things seem impossible.
It is better by noble boldness to run the risk of being subject to half of the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.
You have to believe in yourself when no one else does.
The success of a learning algorithm depends on its ability to balance between fitting the data and avoiding overfitting.
