1)Does "a peanut for a brain" mean "a brain that is as small as a peanut"?
2) Does "it pleased God by the foolishness of preaching to save them that believe" mean "to save those who believe God will delight God (the method to save is preaching; such preaching, so foolish in God's eye, nonetheless will please God)"?
Context:
I have read various debates over whether or not Albert Einstein was a Christian. The answer clearly is a big NO! Anyone who calls Jesus Christ a "myth" has
a peanut for a brain. No wonder God said in 1st Corinthians 1:21, "For after that in the wisdom of God the world by wisdom knew not God,
it pleased God by the foolishness of preaching to save them that believe." It is secular wisdom that blinds him from God's Truth.
Colossians 2:8 reads, "Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ." Man's greatest wisdom is utter foolishness to to God. Now there's nothing foolish about preaching the Gospel, but it always appears foolish to the lost Christ-rejecting world. Unto us which believe, Jesus is Precious (1st Peter 2:7). To the born again believer, Jesus is Almighty God (John 1:1-3,14; 10:33; Revelation 1:8). To the unsaved, Jesus is just a myth or a great historical figure.
More:
http://jesus-is-savior.com/Wolves/einstein.htm