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Learning is an unending process, we can learn from trivial things. Nothing is unimportant in learning. Source may be small but it is important if if gives knowledge and "Knowledge is Power".

The acorn barnacle is a little shelled animal that fastens itself to the hulls of boats. It has an incredible trait: It secretes an adhesive so powerful that a very thin film just a few thousandths of an inch thick has a shear strength of about 7,000 pounds per square inch! Ask anyone that has tried to remove them from a boat hull how difficult the task was! Now you may be asking: "Okay, Vijay. What's the point?" In a word, the point is: persistence. Just as the acorn barnacle has the unusual ability to stick to things, you must learn to persist in your career. Never give up too soon. Yes, you have to work ,work and work, but not everyone that tries, of course, succeeds