Collaboration across industries is the key to solving the world's most pressing problems.

The past is a foreign country; they do things differently there.

就像每个伟大的革命一样，新事物的出现总会被恐慌和抵制。

The scientific study of behavior must be based on objective, measurable data.

穷人不是需要解决的问题，而是需要拥抱的机会。