The world won't care about your self-esteem. The world will expect you to accomplish something BEFORE you feel good about yourself.

Take our 20 best people away, and I will tell you that Microsoft will become an unimportant company

Online education is pretty special for two reasons. One is that you can get the very best lecture in the world and wherever you are, whenever you want, you can connect to that lecture. The other is this interactivity, where if you know a topic, you can kind of skip over it. Or if you're confused about it, [the area] where you're confused can be analyzed by software.

There are a variety of techniques for breaking software down into pieces and making software development more efficient. Many of these techniques have been sort of... and everybody got excited about but very little benefit was actually derived once the thing was put into practice.

Vaccines are extremely well tested; their safety is well understood. The false allegations about vaccines causing autism have been disproven. But there are still echoes out there confusing people.

There are no significant bugs in our released software that any significant number of users want fixed.

Intellectual property has the shelf life of a banana.