The fact that a certain proposition can be deduced from a certain set of axioms by means of a certain system of rules does not in itself make it true.
某个命题可以从某一组公理通过某一规则系统推导出来,这一事实本身并不使其为真。
I am not a liberator. Liberators do not exist. The people liberate themselves.
我们必须投资于研究和教育,以确保水产养殖与自然和谐发展。