Sentence:  We may say that his <WSD>attitude</WSD> was foolish , since he may have been a success had he learned some human relations skills ; or we may say that his attitude was commendable , showing his independence of mind , in his refusal to adjust to the opinions of others . 
Meaning of the word marked with <WSD> tags:  a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways