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User needs are both the starting point and the end point of business.
Quality is never an accident; it is always the result of intelligent effort.
The most important thing is to keep the most important thing the most important thing.
Never give up. Today is hard, tomorrow will be worse, but the day after tomorrow will be sunshine.
The environment is not a mosaic of stimuli, but a field of forces in which every part is dynamically related to every other part.