如果我们知道赚钱不易，就不会乱花钱。

We will be more careful with money if we know how hard it is to earn money.

他要乱花钱，那是他自己的事。

If he wants to waste his money, that's his lookout.

我真的认为作为一个企业家，作为一个创业公司，你不能完全不考虑未来就乱花钱。

I really thought as an entrepreneur, as a startup, you really cannot spend money like hell without thinking about tomorrow.