そんな甘い考えは捨てなさい。の英語

Get rid of those kinds of naive ideas.

Give up such ideas.

Put away such a foolish idea.

Get rid of such stupid ideas!

Please throw that idea away.

Put off your silly ideas.

Cut out the nonsense, will you?

Stop making with the silly ideas.

Let's not think like that.

You're over-analyzing.

You think too much!

You think too much.

I think you worry too much.

You're thinking too much.

You're reading too much into this.

You're reading too much into things.

Don't even think about it.

Let's not think like that.

Let's not bother with such formalities.

Please do not think about it too seriously.

Stop making such a poor excuse for that.

Let's stop talking about such gloomy subjects.

Stop acting like such a fool.

Stop harping on like that.

I don't like that idea much.

Stop slagging off my brilliant idea, it's not naive at all!

Stop telling those filthy stories.

Please don't over-think it.

Let's not think like that.

You should rid yourself of [slough off] such superstitions.