I’m not sure that Jack Copeland actually manages to sum up Alan Turing in three words.
Nonetheless, this brief video provides a nice portrait that helps rescue the real Alan Turing, the man you would meet face to face, from the that other Turing:
Turing the Icon
Turing the Guy on the Postage Stamp
Turing the Entry in Wikipedia.
It’s easily worth two minutes and forty-seven seconds of your time.
Copeland’s first three words: Humour, courage, isolation.
Copeland’s second three words: Patriotic, unconventional, genius.
It’s a compact Turing poem:
Humour, courage, isolation.
Patriotic, unconventional, genius.