Pen or Pencil? A Book Review Pt. 1

I've begun reading my assigned book Why College Matters to God and have found it to be more interesting than expected. The author Rick Ostrander brings to light several points about college that I had not thought about before. He opens by discussing what a worldview is, how one formulates one, and what purpose a college should take in shaping it. He makes the point that no matter where you go to college your worldview will be shaped. However, Christian colleges should take a different part in that then secular universities. He says that, "The purpose of a Christian college is not to hand you a complete Christian worldview on a platter; rather, it's to start you on the process of developing a comprehensive, coherent, yet dynamic Christian worldview."
His most interesting point came later in that chapter. He used crossword puzzles as a means to illustrate how students at Christian colleges mostly come with their worldview written in pen. He says they come from churches, families, and schools that encourage them to "fill in" their worldview with pen. However, he suggests that the wise students will use pencil when constructing their worldview. They will be willing to erase and rewrite. He says one purpose of a Christian education is to help you figure out which parts of your worldview are open to revision, and which are not.
As i reflect on my own "worldview" I fear I have used too much pen and not enough pencil. I only hope that i will be be able to keep an open mind, yet still hold on to those things i know to be true.