The essence of leadership is being able to see the iceberg before it hits the Titanic.

Moving forward, investigative journalists need to train themselves to be media amphibians - just as comfortable with the classic verities of great journalism as they are with video, Twitter, Facebook, and, most importantly, citizen journalism.

I think people are attracted to The Huffington Post's blend of up-to-the-second news and thoughtful opinion, delivered with an attitude. Plus, I think they enjoy that we cover so many different things - from politics and entertainment to style and satire. There is always something interesting to read and think about - and even to laugh at.

We all have within us the ability to move from struggle to grace.

I started asking the big questions that I had asked in college, that my compatriots the Greek philosophers had asked, like 'what is a good life?' Socrates famously said that 'The unexamined life is not worth living.' I started asking these questions from the starting point of 'what is success?'

Naysayers have little power over us - unless we give it to them.

Our relationship with sleep is currently in crisis, but we're also living in a golden age of sleep science - revealing all the ways in which sleep and dreams play a vital role in our decision-making, emotional intelligence, cognitive function, and creativity. Every week, new research reveals how vital sleep is to our health, happiness, job performance, and relationships.