I talked earlier about resetting my thermostat during university days. But it was before my primary school graduation when I realized for the first time in my life that I was capable of pressing the amazing reset button.

Looking back on my primary school days, I don't recall much except my mediocre academic performance; I just know I always ranked more than ten in my class. At any rate, I remembered the soccer league tables far better than what the teachers said during the class.

Then one afternoon in my final

我有個哲學家朋友（哲學家甲）因為論文屢次不被學術期刊接納，覺得很失意；眼見有些朋友年年有論文刊登，他更不是味兒。我不知道他的生活整體上是否快樂，但在學術發展方面，他顯然是不快樂的。

我另有一個哲學家朋友

Needless to say, nephrologists talk a lot about the blood's salt or sodium content. We teach our medical students that kidneys help to keep our body's solute (composed primarily of sodium) concentration or so-called osmolality within a narrow range. No more, no less. It would be hard to imagine how nature works it out to keep everything in such a fine balance.

Now. Maybe you think our body is too unwieldy or rigid to operate only within a narrow range of osmolality. "Why