进来对好多东西感兴趣，又想学经济学，又想学心理学，又想学物理学，又想学数学，可是人们面临tradeoffs，在考虑opportunity cost和marginal costs，并对incentives作出反应之前，感性地听了首歌，看了篇小说，然后颤动中再挥霍一把并不免费的时间
听了张Bob Dylan的The Basement Tapes
Bob Dylan: Too Much Of Nothing
Now, too much of nothing
Can make a man feel ill at ease.
One man’s temper might rise
While another man’s temper might freeze.
In the day of confession
We cannot mock a soul.
Oh, when there’s too much of nothing,
No one has control.
Say hello to Valerie
Say hello to Vivian
Send them all my salary
On the waters of oblivion
Too much of nothing
Can make a man abuse a king.
He can walk the streets and boast like most
But he wouldn’t know a thing.
Now, it’s all been done before,
It’s all been written in the book,
But when there’s too much of nothing,
Nobody should look.
Say hello to Valerie
Say hello to Vivian
Send them all my salary
On the waters of oblivion
Too much of nothing
Can turn a man into a liar,
It can cause one man to sleep on nails
And another man to eat fire.
Ev’rybody’s doin’ somethin’,
I heard it in a dream,
But when there’s too much of nothing,
It just makes a fella mean.
Say hello to Valerie
Say hello to Vivian
Send them all my salary
On the waters of oblivion