Richard Bookstaber in The End of Theory:

How we look at the world, even how we understand what someone else is saying, depends on context, and context changes with our experience and with circumstance. In the day-to-day world, these changes usually move slowly—though they do change: what we want for our lives, what we strive for and sacrifice for, are different at ages fifteen and fifty. The changes that come slowly with life experience speed up during a crisis. And having lived through one crisis, we will be a different person and come to the next one differently.