YLT(i)
 8  for we are not able to do anything against the truth, but for the truth; 
 9  for we rejoice when we may be infirm, and ye may be powerful; and this also we pray for—your perfection! 
 10  because of this, these things—being absent—I write, that being present, I may not treat any sharply, according to the authority that the Lord did give me for building up, and not for casting down.