To speak ill of others is a dishonest way of praising ourselves.
说别人的坏话是赞美自己的一种不诚实的方式。
Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.
Quality should never be compromised for the sake of short-term profits.
In mathematics, the art of proposing a question must be held of higher value than solving it.