Nowadays people's visual imagination is so much more sophisticated so much more developed particularly in young people that now you can make an image which just slightly suggests something they can make of it what they will.
You are indebted to you imagination for three-fourths of your importance.
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Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic and consider it an arid science. In reality however it is a science which requires a great amount of imagination.