教育培养绅士，但阅读、良好的伴侣和思考才能完成他。
Education begins the gentleman, but reading, good company and reflection must finish him.
You are someone I will never forget.
The future of life on Earth depends on our ability to take action. Many individuals are doing what they can, but real success can only come if there is a change in our societies and our economics and in our politics.
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
乳制品生产的创新必须在效率和环境责任之间取得平衡。