So oft it chances in particular men That (for some vicious mole of nature in them, As in their birth, wherein they are not guilty, Since nature cannot choose his origin) By the o'ergrowth of some complexion, Oft breaking down the pales and forts of reason, Or by some habit, that too much o'erleavens The form of plausive manners—that (these men, Carrying, I say, the stamp of one defect, Being nature's livery, or fortune's star) Their virtues else, be they as pure as grace, As infinite as man may undergo, Shall in the general censure take corruption From that particular fault. The dram of evil Doth all the noble substance of a doubt, To his own scandal.

Hamlet