Every day, we make choices. Most choices are minor, like when you're driving home from work debating with yourself whether you should head straight back to your place and eat the boring leftovers from the night before, or stop on the way for a burrito instead.
Other choices are important. You know the stuff: do you pick the safe college close to home, or go across the country to your dream school? Do you take the high-paying job in your field, or strike out halfway around the world on a passion project? That girl you met two years ago -- do you ask her to marry you?