The speaker claims that the only way to success no matter in which field is to adopt a  practical perspevtive rather than a idealistc one, and the pragmatic behavior certify survival while idealistic views tend to be supplant by simper, more immediate opnions. In my view, I, to some extent, agree with the speaker, but a idealistic view is not as hopeless as the speaker allege.
One compelling argument in favour of a practival view involves the problems solved in daily life by pragmatic progresses. A telling example of  this is the development of the transportation started from a horse-driven carriage to the supersonic aircraft, and this reform is motivated by human beings' requirements to the fast speed of travelling. So the designers think in a practical way to satisfy people's appetite, the revolutionary cars, ships, aircrafts are made successively. Moreover, when it is hot in summer, engineers make the air conditioner serve human beings, and this is engineers' pragmatic attitude which have made our life turn into a more convenient and friendly one. Many significant human progresses are made just as the foregoing examples induced by the designers and scientists' pravtical views.
It will be sensible that people will be successful when they take a practical idea into action. Consider, for intance, the success of SONY's walkman. In the era of there was no portable music player, when people come up with a desire to enjoy the music, they had to sit down quietly in front of a huge tape recorder machine and to turn up the volume if they want listent to the music outside the door. So there was a strong desire among people at that time to a kind of music product that can be taken to any place. So SONY took this appeal into consideration, and the walkman is unwrapped to meet the world with a overwhelming success as the tremendous success of ipod. And the history is never lack of this kind of accomplishments which deliberate the demands of people frome a practical perspective.
Moreover, the speaker also talks about the idealistic point of view and say no good to it. The idealistc view, acturally, are the perspective involves no practical views. It always the ideas or the claims of one person or a certain group which can not present most people's requirements. So, as the speaker claims, this kind of views tend to be supplanted by simpler and more immediate options in most cases. We, human beings, for instance, are short of the drink water for decades, and we have such choice to fix it as sea water conversion, melting the iceburgs in poles and so forth. But apparently these measures are unapplicable and unadvisable to the extent of our technology and the natural balance. A myriad of idealisc views as these are really meaningless when take it into serious consideratin from all perspectives.
Nevertheless the idealisc point of views are unadvisable to some extent, some successful ideas and improvements are primarily based on the idealisc views. If the idealisc perspective are only accept by few people who are some kind of genius, it would be an era of revolution when these views come into reality. As the spectaculor success of iphone, when it was published at the summer of 2007, some analysts of Wall Street forecasted that iphone wolud be worst choice of Apple's strategies because they thought it would be weird to combine a ipod to a phone. But today the iphone empire tells them iphone is a historical fabulous product that is copies by most mobile phone producers. This compelling fact disprove the speaker's claim that there would be no success in any realm of life in a idealistic view compared to the practical view. As the idealistic view is only shared by few peole, once it is a real one there would be revolutionary success whereas the one motivated by practical views would be a tiny success. However, it does not mean that there would be no relationship between these two kinds of entirely different views, on the way to achieve a idealistic dream, it would be more practical if slice the big dream into some attainable and realistic ones.
To sum up, a practical view is realistic in most cases whereas idealistic view is unpractical in most cases, but once the idealistic one is proved to be sensible and wolud be a tremendous success.