If the desire to kill and the opportunity to kill always came together, who would escape hanging? Framed in a more positive light, this tells us also that if we wish to accomplish a particular thing then we need to increase our level of desire for that thing and to create or seek out the opportunities and right environment for it to happen without fail.
Clothes make the man. Naked people have little or no influence on society. You cannot depend on your eyes when your imagination is out of focus. As in the words of Wayne Dyer, when you change the way you look at things, the things you look at change. Sometimes to know with certainty that a particular thing is "true", will actually be the very thing that keeps you from attaining the things you seek to achieve.
When I was fourteen, my father was so ignorant I could hardly stand to have him around. When I got to be twenty-one, I was astonished at how much he had learned in seven years. See what happens when you "know it all", at any stage of life? Farther down the track you may see clearly how certain personal opinions, held onto too tightly, could be fogging up the view, and providing incorrect insight. Prosperity is the best protector of principle.
Time cools, time clarifies; no mood can be maintained quite unaltered through the course of hours. When you make a decision to "be" a particular way, you can count on change and external circumstances to come along which will challenge that decision. Remain vigilant after declaring a major decision and manage yourself in relationship to the goal. Set up structures that support you staying on target.
Don't part with your illusions. When they are gone you may still exist, but you have ceased to live. To live a fulfilled life, we need to keep creating the "what is next", of our lives. Without dreams and goals there is no living, only merely existing, and that is not why we are here.