无关紧要的

This is a matter of no account.

这是一件无关紧。

He often dissipated his energies in trivial matters.

他常在无关紧小上浪费精力。

That’s something extrinsic to the subject.

那是对本题无关紧。

It is a mere trifle.

那只是无关紧而已。

By becoming involved with tangential issues, it hopes to hide the real question and keep it out of mind.The ego's characteristic busyness with nonessentials is for precisely that purpose.

之所以老在无关紧问题上搅和，乃是希望借此避开真正问题，将于心灵之外。