Only the autodidacts are free.

For many people, commuting is the worst part of the day, and policies that can make commuting shorter and more convenient would be a straightforward way to reduce minor but widespread suffering.

Read books are far less valuable than unread ones. The library should contain as much of what you do not know as your financial means, mortgage rates, and the currently tight real-estate market alow you to put there.

We tend to use knowledge as therapy.

He who has never sinned is less reliable than he who has only sinned once. And someone who has made plenty of errors-though never the same error more than once-is more reliable than someone who has never made any.

Go to parties. You can't even start to know what you may find on the envelope of serendipity. If you suffer from agoraphobia, send colleagues.

A country's assets reside in the tinkerers, the hobbyists, and the risk-takers.