I got what I needed out of Princeton in 1 year, and I didn't think it was useful.

To me, it's impolite to go out shopping with no money.

People with water-borne diseases occupy more than 50% of hospital beds across the world. Does the answer lie in building more hospitals? Really, what is needed is to give them clean water.

Most of the people don't know that one of the great qualities of caffeine is it allows you to absorb nutrients, and it does it quickly, and so when it does it quickly, you focus, and when you focus, you think you have energy.

Recruiting is the hardest part of any business, but in charity, it is 10 times harder.

Working manually is not considered bad in the U.S.