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。
我们行业的运营许可书写在社会认可的墨水中。
如果你不愿意冒险，你将一事无成。