【正文】 失了夢想，他丟失了追求的心。人最可憐的便是，了無所求。有時候，我站在繁華的街頭，看著那些有手有腳的中年男女拿著一個破碗到處乞求他們，把自己打扮的可憐無比，說的凄慘無限。以此來博得同情。向他們那樣的年紀(jì)應(yīng)該是人生中最得意的時刻。家成立業(yè)，幸福無比。但我看到的卻是他們流落街頭，何故?失去了追求，妄想坐享其成。有時候我會想，他們?nèi)缥覀冞@個年紀(jì)的時候，一定也高談?wù)撻煹脑捳f著未來，斷斷沒有想到未來的幾十年后自己會成為連自己也瞧不起的那種人吧。別人的故事，可以聽聽就忘了。那么自己的故事了?也就這樣，一筆帶過?不著痕跡?要我這樣過一生，我是絕對不會的。也因此，我站在了這里，跟你們說青春，談夢想。因為我知道，余下的一生，我都將靠他過活。我的夢想一直在路上從未走遠(yuǎn)，成為一個作家則是我畢生所求。所有跟文字有關(guān)的都是我所喜歡的，為這花費多少精力我也樂此不疲。開學(xué)演講稿高中生篇十七over the ne_t five minutes, my intention is to transform your relationshipwith sound. let me start with the observation that most of the sound around usis accidental, and much of it is unpleasant. (traffic noise) we stand on streetcorners, shouting over noise like this, and pretending that it doesn39。t , this habit of suppressing sound has meant that our relationship with soundhas bee largely unconscious.there are four major ways sound is affecting you all the time, and i39。d liketo raise them in your consciousness today. first is physiological. (loud alarmclocks) sorry about that. i39。ve just given you a shot of cortisol, yourfight/flight hormone. sounds are affecting your hormone secretions all the time,but also your breathing, your heart rate which i just also did and yourbrainwaves.it39。s not just unpleasant sounds like that that do it. this is surf. (oceanwaves) it has the frequency of roughly 12 cycles per minute. most people findthat very soothing, and, interestingly, 12 cycles per minute is roughly thefrequency of the breathing of a sleeping human. there is a deep resonance withbeing at rest. we also associate it with being stressfree and on holiday.the second way in which sound affects you is psychological. music is themost powerful form of sound that we know that affects our emotional state.(albinoni39。s adagio) this is guaranteed to make most of you feel pretty sad if ileave it on. music is not the only kind of sound, however, which affects youremotions.natural sound can do that too. birdsong, for e_ample, is a sound which mostpeople find reassuring. (birds chirping) there is a reason for that. overhundreds of thousands of years we39。ve learned that when the birds are singing,things are safe. it39。s when they stop you need to be worried.the third way in which sound affects you is cognitively. you can39。tunderstand two people talking at once (if you39。re listening to this version of)(me you39。re on the wrong track.) or in this case one person talking twice. tryand listen to the other one. (you have to choose which me you39。re going tolisten to.)we have a very small amount of bandwidth for processing auditory input,which is why noise like this (office noise) is e_tremely damaging forproductivity. if you have to work in an openplan office like this, yourproductivity is greatly reduced. and whatever number you39。re thinking of, itprobably isn39。t as bad as this. (ominous music) you are one third as productivein openplan offices as in quiet rooms. and i have a tip for you. if you have towork in spaces like that, carry headphones with you, with a soothing sound likebirdsong. put them on and your productivity goes back up to triple what it wouldbe.the fourth way in which sound affects us is behaviorally. with all thatother stuff going on, it would be amazing if our behavior didn39。t change. (technomusic inside a car) so, ask yourself: is this person ever going to drive at asteady 28 miles per hour? i don39。t think so. at the simplest, you move away fromunpleasant sound and towards pleasant sounds. so if i were to play this (jackhammer) for more than a few seconds, you39。d feel unfortable。 for morethan a few minutes, you39。d be leaving the room in droves. for people who can39。tget away from noise like that, it39。s e_tremely damaging for their health.and that39。s not the only thing that bad sound damages. most retail sound isinappropriate and accidental, and even hostile, and it has a dramatic effect onsales. for those of you who are retailers, you may want to look away before ishow this slide. they are losing up to 30 percent of their business with peopleleaving shops faster, or just turning around on the door. we all have done it,leaving the area because the sound in there is so dreadful.i want to spend just a moment talking about the model that we39。ve developed,which allows us to start at the top and look at the drivers of sound, analyzethe soundscape and then predict the four outes i39。ve just talked about. orstart at the bottom, and say what outes do we want, and then design asoundscape to have a desired effect. at last we39。ve got some science we canapply. and we39。re in the business of designing soundscapes.just a word on music. music is the most powerful sound there is, ofteninappropriately deployed. it39。s powerful for two reasons. you recognize it fast,and you associate it very powerfully. i39。ll give you two e_amples. (first chordof the beatles39。 a hard day39。s night) most of you recognize that younger, maybe not. (laughter) (first two notes of jaws theme) and most ofyou associate that with something! now, those are onesecond samples of is very powerful. and unfortunately it39。s veneering mercial spaces,often inappropriately. i hope that39。s going to change over the ne_t fewyears.let me just talk about brands for a moment, because some of you run brand is out there making sound right now. there are eight e_pressions ofa brand in sound. they are all important. and every brand needs to haveguidelines at the center. i39。m glad to say that is starting to happen now. (intelad jingle) you all recognize that one. (nokia ringtone) this is the mostplayedtune in the world today. billion times a day, that tune is played. and itcost nokia absolutely nothing.just leave you with four golden rules, for those of you who run businesses,for mercial sound. first, make it congruent, pointing in the same directionas your visual munication. that increases impact by over 1,100 percent. ifyour sound is pointing the opposite direction, incongruent, you reduce impact by86 perce