Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.
Stephen HawkingAlthough September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.
Stephen HawkingKeeping an active mind has been vital to my survival, as has been maintaining a sense of humor.
Stephen HawkingAlthough September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.
Stephen Hawking