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I do not believe in luck.
Luck is:
Laboring
Under
Correct
Knowledge
Sometimes in my life, I could have sworn (I don't really - just a figure of speech) that an Angel protected me. But, we must learn our lessons from each incident.

You are absolutely right @freedomshift, we need to learn the lesson from each of thing happen to us, whether good or bad. when we know the reason behind something, someday we will have a bunch of knowledge. for what I knew; When we know why we fail we can adjust ourselves for bigger chance to success, When we know why we success we can make more success in the future.