Today, more and more people begin to think about this unpredictable problem:Are technological advances always good?Before we start to discuss modern technology,let's go back thousand years ago.Do you know what the real purpose of inventing gunpowder was?It was invented by accident when the alchemists helped the China emperor make the medicine which could make him live forever.Later, people used the gunpower to make a great creation:firework.This was the correct way to use this invention.But when it was taken to Europe everything changed.So, it was why we called it gunpower.It was used in another ways.People started to use guns to kill others and get benefits from the victims.Until today, we still live under the shadow of the violence of guns.Besides guns, like other technological advances,such as :computer, phone and other electronic devices.If the inventors just want get more profit and don't care about what influence they would make and how the new inventions affect everyone's daily life, it's terrible.Everything has two sides: positive and negative.As for you, if you are an inventor or a big company manager, how will you do to develop the technology? just for money or something else?