Gunpowder is not just a tool of destruction, it can also be a medium for creation. 火药不仅是破坏的工具，它也能成为创造的媒介。
Stay true to yourself and your art.
解释：君子有三件值得可惜的事：一辈子不学习，是第一件可惜的事；一天无所事事，是第二件可惜的事；一个人的名声败坏，是第三件可惜的事。
The existence of a legal system depends on the acceptance of secondary rules by officials.