There is a really big issue with translations and that has to do with culture, which is difficult to translate in a line. The literal translation is to, 'pay back according to virtue' (virtue / goodness / morality / ethics / kindness / favor / character / kind)
Of course, pay back can be understood as positive or negative but the meaning here is positive. There are some translations that are just more practical than academic.
David Hinton 2002
If you're nothing doing what you do,
you act without acting and savor without savoring,
you render the small vast and the few many, use Integrity to repay hatred,
Dwight Goddard 1919
One should avoid assertion (wu wei) and practice inaction.
One should learn to find taste in the tasteless, to enlarge the small things, and multiply the few. He should respond to hatred with kindness.
Bradford Hatcher 2005
Act without acting
Work without working
Savor without tasting
Greatness is ordinary, much is little Repay ill will with virtue
Wing-Tsit Chan 1963
Act without action. Do without ado. Taste without tasting.
Whether it is big or small, many or few, repay hatred with virtue.
Gu Zhengku 1993
Act by means of inaction;
Deal with matters by means of not being meddlesome;
Taste by means of tastelessness.
The big stems from the small;
The many is based on the few. To overcome the difficult should begin with the easy;
Ch'u Ta-Kao 1904
Act non-action; undertake no undertaking; taste the tasteless.
The Sage desires the desireless, and prizes no articles that are difficult to get.
He learns no learning, but reviews what others have passed through.
Thus he lets all things develop in their own natural way, and does not venture to act.
Regard the small as the great; regard the few as many. Manage the difficult while they are easy;
Flowing Hands 1987
In the Universe, the Dao and the Ten Thousand Things all flow according to their natures.
The Heavenly bodies move and glow according to how they were formed
Man should take note of this and exercise himself according to their influence,
and then he will be in keeping with the Dao.
By following the flow and entering into emptiness,
practise the ways of doing without doing, influencing without interfering.
For the Heavenly bodies influence our lives, but we can never feel their influence.
The Sage follows the flow and so he practises influence without interfering.
He rewards anger and strife with care and understanding.
He meets aggression with yielding softness.
So he remains at one, unattached and unharmed.
His nature is simple and yielding.
So he never complicates his life.
He never demands too much of the people