It gives me a lot of energy to talk to developers or meet students in classrooms who are using our technology to help learn faster and better. Watching them pursue their passion.Tim Cook
The only driver stronger than an economic argument to do something is the war argument, the I-don't-want-to-die argument.Neil deGrasse Tyson
Intuition and concepts constitute... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge.Immanuel Kant
On engagement, we're already seeing that mobile users are more likely to be daily active users than desktop users. They're more likely to use Facebook six or seven days of the week.Mark Zuckerberg
