Ethan's even got his own song - sung by his mother and written specially for the two of them - a celebration of how music means something to everyone, whether you can hear it or not.

BBC: Creating music accessible for deaf children

"Problems in the financial markets are on a scale that I don't think even today people grasp, " says Ethan Berman, RiskMetrics' chief executive.

FORBES: Magazine Article

Even last month, a post on pianist Ethan Iverson's "Do the Math" blog sparked online debate over whether jazz competitions support or inhibit creativity.

WSJ: Thelonious Monk International Jazz Drums Competition | The Future of the Beat | By Larry Blumenfeld

Even if you can't hear the music, the vibrations through this soundbox let people like Ethan feel it through his hands, through his feet, through any part of his body really.

BBC: Creating music accessible for deaf children

Under the presidency of George Bush, says Ethan Nadelmann, executive director of the Drug Policy Alliance, an American lobbying group, prospects for even modest reform are bleaker than they were under his father's presidency.

ECONOMIST: Illegal drugs: Just say maybe | The