语言不仅仅是交流的手段；它是存在的居所。
Language is not just a means of communication; it is the house of being.
创新既需要勇气，也需要耐心。
Mathematics is a collaborative endeavor. No one does it alone.
The first duty of the sovereign， that of protecting the society from the violence and invasion of other independent societies， can be performed only by means of a military force.