The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.

The deterioration of every government begins with the decay of the principles on which it was founded.