I vividly remember a college philosophy class discussion that centered around the concept of our place in the universe. One person offered the suggestion that we make a permanent impact on the galaxy because we leave a legacy of some sort that's carried along by family and friends whenever we're gone.
That theory was countered by another student who suggested that if you take your foot out of a bucket of water, the hole that is left is the amount that we're remembered.
John McCain's "suspension" of his campaign and subsequent visit to Washington to provide leadership reminded me of the water bucket. Now that's he's off to Mississippi, the difference he made in the financial crisis can best be described as that hole.
Now that's leadership.