David Foster Wallace gave the commencement speech at Kenyon College in 2005. In this speech, called “This Is Water,” Wallace tried to explain to the graduates what really matters most in life.

Wallace was a gifted and successful novelist.

He contrasted “the default setting” in which most of us live, reacting with frustration, anger, greed, me-first, to a conscious choice about leading a different life with different choices and values.

It is a strangely moving speech, not least because Wallace committed suicide in 2008.