一夜未眠。近來深夜不愛睡覺，看到窗外天空晨光已不稀奇，實際沒設法睡著卻是首例。
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花粉熱何來？
美國東北這地方，四季分明，季節變化的驟劇，若非親見有時不易體會。
大多數的人應該都聽說過花粉熱。花粉熱 (Hay fever) 基本上就是對花粉過敏的毛病，英文管叫 「Hay」 fever，因為百花盛開的春/早夏也正好是一年中傳統的收割牧草之時。
Put some elbow grease into that snow
I remember well the three snows this winter. One at the end of last year, one just about a month ago. This last one came seemingly humbly, but I didn’t expect it to bring the thickest white layer yet.
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雪中放點手肘油
![[snow view]](http://images.mathemusician.net/2010-02-late-snow/late_snow_1.jpg)
這冬天的幾場雪令人印象深刻。一次在去年年末，還有一次在約一個月前。這兩天風雪再次報到。原本它毫不起眼：最近氣溫已回復到零度之上，我心想再來些濕濕的半雨半雪也不至於再度影響到交通。
結果老天帶來的是這冬天最厚，最漂亮的一層白地毯。
A Glimpse of the Courant Lounge
So this one day I worked on some math, and started sauntering within the Courant building like I often do. Arrived at the top floor lounge. There it is, the Christmas tree, in the middle of January. Though I guess if people start playing Christmas music as early as November, this isn’t much of a surprise.
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