As we grow old, a sort of equable jog-trot of feeling is substituted for the violent ups and downs of passion and disgust; the same influence that restrains our hopes, quiets our apprehensions; if the pleasures are less intense, the troubles are milder and more tolerable; and in a word, this period for which we are asked to hoard up everything as for a time of famine, is, in its own right, the richest, easiest, and happiest of life. Nay, by managing its own work and following its own happy inspiration, youth is doing the best it can to endow the leisure of age. A full, busy youth is your only prelude to a self-contained and independent age; and the muff inevitably develops into the bore. There are not many Doctor Johnsons, to set forth upon their first romantic voyage at sixty-four. If we wish to scale Mont Blanc or go down in a diving dress or up in a balloon, we must be about it while we are still young. It will not do to delay until we are clogged with prudence and limping with rheumatism, and people begin to ask us: "What does Gravity out of bed?" Youth is the time to go flashing from one end of the world to the other both in mind and body; to try the manners of different nations; to hear the chimes at midnight; to see sunrise in town and country; to be converted at a revival; to circumnavigate the metaphysics, write halting verses, run a mile to see a fire, and wait all day long in the theatre to applaud HERNANI.
在我们渐渐变老的过程中，一种平μ而缓慢的感觉替代了强烈的爱憎沉浮；同样的感觉让我们收敛自己的希望，抚慰我们的忧惧。如果说快乐能少几分激情，那么烦恼也变得更加微不足道，更能够忍受。总之，在这段时间里，我们需要储备一切，以备不时之需。在整个生命的历程中，这段时间是最丰富多彩、最闲适、最幸福的。不仅如此，通过管理自己的行为，跟随快乐的灵感而动，年轻人在竭尽全力赋予自己的时代以安逸的成分。充实、忙碌的青年时代是独立、自由的晚年生活的前奏；那些不能完成这些的人，其晚年生活不可避免是令人厌烦的。这个世界上，约翰逊博士并不多，在64岁的时候才开始他们的第一次浪漫之旅。如果我们想要丈量勃朗峰，或是穿着潜水服潜水，或是坐着热气球升天，就必须趁着年轻去做，不要等到变得谨小慎微、腿脚不便的时候才想着去做。那样的话，人们就会问我们：“怎么这么不安分？”无论是脑力还是体力上，青年时代都是周游世界的时期。去领略不同国家的人文风情；去聆听午夜的钟声；去观看城市与乡村的日出；去虔诚悔过；去统览玄学，编写牵强的诗句，跑远路去看篝火，还为了给《艾那尼》 喝彩而在剧院等上一天。
及时行乐！我们慢慢变老的时候，平μ和缓慢渐渐代替了强烈的沉浮，也让我们收敛了希望。有些事，就要趁着年轻去做，不能等到变得谨小慎微、腿脚不便才想着去做。
年轻人
Youth
[古希腊]亚里士多德/Aristotle
亚里士多德（前384—前322），出生于希腊北部的斯塔吉à，父亲是马其顿国王的御医。公元前367年，17岁的亚里士多德到当时希腊的文化中心雅典，进入柏à图的阿卡德米学院学习。由于他聪敏过人，深受柏à图的喜爱，成为柏à图的得意门生。他在学院一共学习了20年，直到柏à图去世。
To begin with the Youthful type of character. Young men have strong passions, and tend to gratify them indiscriminately. They are changeable and fickle in their desires, which are violent while they last, but quickly over: their impulses are keen but not deep-rooted, and are like sick people' s attacks of hunger and thirst. They are hot-tempered, and quick-tempered, and apt to give way to their anger; bad temper often gets the better of them, for owing to their love of honor they cannot bear being slighted, and are indignant if they imagine themselves unfairly treated. While they love honor, they love victory still more; for youth is eager for superiority over others, and victory is one form of this. They love both more than they love money, which indeed they love very little, not having yet learnt what it means to be without it — this is the point of Pittancus, remark about Amphiaraus. They look at the good side rather than the bad, not having yet witnessed many instances of wickedness. They trust others readily, because they have not yet often been cheated.
They are sanguine; nature warms their blood as though with excess of wine; and besides that, they have as yet met with few disappointments. Their lives are mainly spent not in memory but in expectation; for expectation refers to the future, memory to the past, and youth has a long future before it and a short past behind it: on the first day of one' s life one has nothing at all to remember, and can only look forward.
They are easily cheated, owing to the sanguine disposition just mentioned. Their hot tempers and hopeful dispositions make them more courageous than older men are; the hot temper prevents fear, and the hopeful disposition creates confidence; we cannot feel tear so long as we are feeling angry, and any expectation of good makes us confident.
They are shy, accepting the rules of society in which they have been trained, and not yet believing in any other standard of honor. They have exalted notions, because they have not yet been humbled by life or learnt its necessary limitations; moreover, their hopeful disposition makes them think themselves equal to great things — and that means having exalted notions. They would always rather do noble deeds than useful ones: their lives are regulated more by moral feeling than by reasoning; and whereas reasoning leads us to choose what is useful, moral goodness leads us to choose what is noble.
They are fonder of their friends, intimates, and companions than older men are, because they like spending their days in the company of others, and have not yet come to value either their friends or anything else by their usefulness to themselves. All their mistakes are in the direction of doing things excessively and vehemently. They disobey Chilon' s precept by overdoing everything, they love too much and hate too much, and the same thing with everything else. They think they know everything, and are always quite sure about it; this, in fact, is why they overdo everything...They are ready to pity others, because they think everyone an honest man, or anyhow better than he is: they judge their neighbor by their own harmless natures, and so cannot think he deserves to be treated in that way. They are fond of fun and therefore witty, wit being well-bred insolence.