In the ultimate analysis it is the man's motive which determines his character as well as his acts.
"As he thinketh within himself, so is he." -- Prov.23:7.
With many men the strongest motive is the desire to surpass others. It not only leads them to perform certain acts, but in so doing shapes their habits.
- http://biblehub.com/library/kent/the_making_of_a_nation/study_vi_the_power_of.htm

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When criticism feels like an attack, it may be because the motive(s) behind it is inappropriate.

"The motive behind criticism often determines its validity. Those who care criticize where necessary. Those who envy criticize the moment they think that they have found a weak spot."
- Criss Jami