Intent vs Means?

How important are the means of achieving an end, over the intent of achieving the end, over the end itself. The question of means vs the intent comes in when you don't achieve the end.

How relevant is the saying: 'All's well that ends well'. And for that dont end well?? 'It's better to have tried and failed, than not tried at all'.

If you are truly passionate about something, how relevant is the manner in which you give it a shot, over the fact that you give it the best that you had? You best may not be the 'best' means of achieving the end... but surely the only one! So if there is a particular target, and at a point in time there seems to be only one way to get there (ok... you were limited by your mental capabilities in figuring out alternate paths for achieving that target), should one give that only way a chance, or leave it for one does not know how other people would react to your adopting that means... or because adopting those means would seem too childish, or immature?

For example, in the movie 'Kabhi Haan Kabhi Naa', were some of the tricks that SRK played justified?... oops sorry, couldnt think of a better example. But you get the point right??

'Life is a jouney, and not a destination.' So it moves on. I am sure there are better things waiting.