努力を怠ってはいけない。の英語

You should never fail to make efforts.

I do not want to exert myself in vain.

fruitlessness of efforts

the degree to which effort is lacking

a condition of being unrewarded in spite of much effort

Square the circle

My labours have borne fruit.

My labours are crowned with success

Nothing is achieved without effort.

You can't achieve anything without effort.

a thing that is done without effort

piffling efforts

a wasted effort

a useless effort

All my efforts were in vain―of no avail―unavailing―All my efforts availed me nothing.

Don't give up without a struggle.

Efforts do not always pay off.

I always put hard work in.

without effort or apparent effort

You cannot achieve anything without effort.

Don't neglect your business.

with little effort

You need to put more effort in.

You aren't putting enough effort in.

All of the efforts so far will be wasted.

ineffective in spite of efforts

I don't spare any efforts.

not resulting from undue effort

slack (up) one's efforts

a faint effort