Weakness v. Strength
1 Cor 1:27: "but God has chosen the foolish things of the world to shame the wise, and God has chosen the weak things of the world to shame the things which are strong,
1 Cor 1:25: Because the foolishness of God is wiser than men, and the weakness of God is stronger than men" (NASU).
The world's definition of "strength" is much different than God's. Unfortunately, the culture in which we live defines strength as having one or more of those attributes it values most - money, power, beauty and fame. Images from the media pound us and our children with the idea that a successful person is one that is strong in these qualities. Yet, Christ valued none of that. He came to serve, rather than to be served, and to give His life for us. The Corinthians did not understand that kind of strength. I think they were not unlike us.
Reading the Sermon on the Mount (see Matthew 5) reminds us who the strong really are - those who are most Christ-like.