I can't rely on Professor Guttag if I give this- if this code to him, I can't rely on him to type in a float. Actually I can, because he's a smart guy, but in general, I can't rely on the user-- I wouldn't do it right to see if you did.

当Guttag使用这段代码的时候-,我不能相信他一定会输入一个浮点数,实际上我能因为他很聪明，但是总体上来讲，别相信用户一定会按照规则来-,我会故意做错来试试你的程序的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Malloy, a DIY-type guy who drove an ambulance to put himself through college, has been spotted covered in motor oil from trying to get it started.

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He's not the type of guy to keep it under wraps or to himself.

BBC: Tom Shanklin's column

Jack Lew is a Harvard-Georgetown, really smart type of guy, and God knows we probably owe him a lot.

CNN: Jack Lew: The signature that goes 'boing'!