Impossible!
For the person whose individual evolution depends on a bubble of experience and influence that does not extend beyond the frugal boundaries of his inherent self; for the person whose existence is marked by cyclic milestones of trouble and misery; this person who knows for sure that he has been singled out out of the millions of species to bear the brunt of the attack that life has in store - for this person, it is an inability - the logical culmination of a universe that will not leave him alone. A life that has been unfair, seeming to give him disadvantages for no reason, can only be expected to riddle him with inabilities.
Give me strength to attempt the impossible. For it is the impossible that marks a great man. Failure to do the impossible is the work of pure genius. For it is no disability on his part. It is just the final task. The successful completion of the impossible is a paradox, for it must follow that he had merely overcome a disability. Overcoming a difficulty is evolution. Attempting the impossible is deviation.
And these deviant humans are the ones who know that impossibility is merely an inevitability. For the purpose of an impossibility is not to taunt the human race, but to single out those that have risen beyond human cognition.