The past is always present, whether we acknowledge it or not.

Sometimes we measure things and see that in the short term they actually hurt sales, and we do it anyway.

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

The best leather tells a story—of craftsmanship, ethics, and time.

The most important thing is to understand the place, the genius loci.

A key insight in learning theory is that the complexity of a hypothesis class is crucial for generalization.