In the eyes of dialectical philosophy, nothing is established for all times, nothing is absolute or sacred.

Philosophy stands in the same relation to the study of the actual world as masturbation to sexual love.

Greek philosophy seems to have met with something with which a good tragedy is not supposed to meet, namely, a dull ending.

Starter pack of essentials for Day 1 defense: customer obsession, a skeptical view of proxies, the eager adoption of external trends, andhigh-velocity decision making.

I wanted to project myself forward to age 80 and say, 'OK, I'm looking back on my life. I want to minimise the number of regrets I have.' And I knew that when I was 80, I was not going to regret having tried this. I was not going to regret trying to participate in this thing called the Internet that I thought was going to be a really big deal.

I'd rather interview fifty people and not hire anyone than hire the wrong person.