Wisdom VS Foolishness

In Wednesday's lesson, I was very impressed by Dr. Edwin's discussion on the differences between the words wisdom, foolishness, shrewd and intelligent. "Foolishness" which means the act that is not sensible and will get oneself into trouble is definitely different from the other three words. But what's the difference between "wisdom", "intelligent" and "shrewd"? All these three words also have the similar meaning, that is, able to make sensible decision and judgement but the difference is the motive behind the action. "Intelligence" is the bridge between "wisdom" and "shrewd". A shrewd person is able to make good decisions because he understands a situation well. He knows when to do the right thing so that he himself would not get into trouble but the motive maybe a selfish one. A shrewd person might be intelligent but he might not be wise. A wise person is not only able to make good decisions but also sensible judgements based on his knowledge and experience for the advantage of others.
In the drama Antigone, her action in burying her brother is seemed as a foolish one from Ismene's perspective. Yes. Indeed it is a foolish action because she had got herself into great trouble and even has to sacrifice her own life. But it is a noble deed that pleases the gods. Antigone is definitely not a shrewd person according to this context, but she is wise in making such a decision.