But Medvedev's real personality is an enigma.
I like the idea of being an enigma.
Why the universe is as it is remains an enigma to science.
Frequently cited as one of the greatest American presidents who ever lived, he is both a hero and an enigma in American history.
Consciousness is still an enigma.
Only the author has the key to this enigma.
The human remains of what you term 'Spirit Cave man' found in Grimes Point is an enigma to your anthropologist.
People love enigma and mystery.
EMILY DICKINSON, who was born nearly 200 years ago, has long been an enigma.
My only consolation was that, as I was equally unable to explain the enigma to them when they came to me for a solution, neither of them had to lose any money over it.
The actual origin of the @ symbol remains an enigma.
Engels was an enigma.
One might argue, as Churchill did of Russia, that it is "a riddle wrapped up in mystery, inside an enigma".
Did this man belong to the double enigma of order and disorder?
The acceleration is thought to be driven by dark energy, but what that dark energy is remains an enigma - perhaps the greatest in physics today.
Mr Netanyahu, not Mr Obama, is the real enigma.
Decidedly this man was an enigma.
