The only thing that can stop you is you.
The most important thing in mathematics is to ask the right questions.
Mental phenomena are tools in the service of life.
欧洲不应是一个怀旧的洲,而应是一个充满希望的洲。
人生は、自分が思っているほど長くはない。
We must balance economic growth with environmental protection to ensure a better future.