よくはわからない。
I think that it is good.
I am not such a fool but can appreciate it.
よくわかりません。
Of course, I think that's a wonderful thing.
分からないよ。
分からないよ。
Anything may happen.
You never know if you never have a go.
I don't follow.
I don't know for certain.
I don't know for certain.