I really like Tony Hoare's quote on this topic:

    ... a programming language designer should be responsible for the mistakes that are made by the programmers using the language.
    [...]
    It's very easy to persuade the customers of your language that everything that goes wrong is their fault and not yours. I rejected that...

http://blog.mattcallanan.net/2010/09/tony-hoare-billion-doll...

If anyone is unfamiliar with Tony Hoare he's the creator of quicksort, Hoare Logic, CSP, worked on Algol, created null, holds a turing award, and much more.