对过去的反思是未来的智慧之源。
Reflection on the past is the source of wisdom for the future.
The greatest happiness is to despise what deserves to be despised.
The future belongs to those who can make leather without leaving scars—on the earth or its people.
最好的性能改进是从非工作状态到工作状态的转变。
When you read,don't just consider what the author thinks,consider what you think.