It always struck me when Paul wrote to the Corinthians:
Where is the wise man? Where is the scribe? Where is the philosopher of this age? Has not God made foolish the wisdom of the world? For since in the wisdom of God the world through its wisdom did not know Him, God was pleased through the foolishness of what was preached to save those who believe. Jews demand signs and Greeks search for wisdom, but we preach Christ crucified, a stumbling block to Jews and foolishness to Gentiles, but to those who are called, both Jews and Greeks, Christ the power of God and the wisdom of God. For the foolishness of God is wiser than man’s wisdom, and the weakness of God is stronger than man’s strength. (I Corinthians 1:18-25))
The unsaved hear that Christians believe Jesus died on the cross for our sins and it doesn't compute -- they think it's ridiculous. But the cross is the true POWER of God. Christ's resurrection is indisputable and we commemorate it at this time of year because, the cross without the resurrection WOULD be foolishness. As Scripture says, "If Christ be not raised, your faith is vain; ye are yet in your sins." (I Cor. 15:17). There is no Christianity without the cross AND the resurrection.
The first Easter morning, nobody expected no BODY!!