As we move through life, we inevitably close doors that cannot be reopened. There is the romantic partner we turned down, the child we had or did not have. But some of these doors aren’t really locked; the challenge for us is to recognize which ones still have a key within reach. If we assume a closed door will never reopen, we are building our own prisons, limiting ourselves by default and fear.
"Don't Talk Yourself out of Trying a Second Career" is from hbr.org, published on April 27, 2016