The study of mathematics is like air or gravity – it’s everywhere, even if you don’t see it.
数学的研究就像空气或重力——它无处不在,即使你看不到它。
The Internet is a powerful tool for education, but it is not a substitute for the teacher.
科学中最重要的不是获得新的事实,而是发现思考它们的新方法。
地理学首先是关于地方的科学,而非关于人的科学。
Life is like a roller coaster, live it, be happy, enjoy life.