I think that everyone has something about themselves that they feel is their weakness... their 'disability.' And I'm certain we all have one, because I think of a disability as being anything which undermines our belief and confidence in our own abilities.
If your knowledge teaches you not to rise above human weakness and misery and lead your fellow man on the right path, you are indeed a man of little worth and will remain such till Judgment Day.
It will not be we who reach Alpha Centauri, and the other nearby stars. It will be a species very like us - but with more of our strengths and fewer of our weaknesses.
Nothing is here for tears, nothing to wail Or knock the breast, no weakness, no contempt, Dispraise, or blame,-nothing but well and fair, And what may quiet us in a death so noble.
I do not love thee less for what is done,
And cannot be undone. Thy very weakness
Hath brought thee nearer to me, and henceforth
My love will have a sense of pity in it,
Making it less a worship than before.
No action, whether foul or fair, Is ever done, but it leaves somewhere A record, written by fingers ghostly, As a blessing or a curse, and mostly In the greater weakness or greater strength Of the acts which follow it.