"Do, or do not.
There is no try."
Establishing Christianity throughout the Empire, then the world. Ending slavery in America. So many deaths and years in the pursuits of these objectives before they were eventually accomplished. What would the Jedi Master have ruled? Didn't they merely "try," rather than "do?" And consequently, wouldn't he have been disappointed and unimpressed? No, and no. Doing, as opposed to trying, is committing to something completely, with the mindset of "failure is not an option." Doing is more than taking a shot, seeing what happens, keeping your fingers crossed; it is taking the field knowing that victory is assured, even if your own death occurs before that ultimate victory is realized. It is saying that this thing is larger than I am; I am doing my part in the pursuit of the larger goal.
Lincoln and freedom DID win, even though people did die; Jesus won, though countless martyrs perished and continue to perish along with Him. These people did, they did not try.
Searching for and finding Truth, regardless of belief, is something that I believe all people are here to do. Helping people do this is very important to me, though I haven't made much progress. When I die, if there is still great hostility and war based on religious as well as non-religious beliefs (I'll grudgingly concede that possibility...), will God look at my life as a failure? Will He say, "Tom, you tried but did not"? Or will He say "you did"? I'm doing and will continue to do the things in this life that will hopefully leave Him no choice other than the acknowledgment of my doing, starting with myself and sharing as much as I can with others. Even if it's still not completely done.