There is almost nothing more painful for a leader than seeing good people leave a growing organization, whether it's a priest watching a Sunday school teacher walk out the door or a CEO saying goodbye to a co-founder.

Anybody, and any company, can have a big run of success once, but if you're going to repeat that over time, you need to be aware that you need to keep learning.

I have yet to meet members of a leadership team who I thought lacked the intelligence or the domain expertise required to be successful. I've met many, however, who failed to foster organizational health. Their companies were riddled with politics, various forms of dysfunction, and general confusion about their direction and mission.

The truth is that intelligence, knowledge, and domain expertise are vastly overrated as the driving forces behind competitive advantage and sustainable success.

Reagan was all about America, and you talked about it. Obama is, 'We are above that now. We're not just parochial, we're not just chauvinistic, we're not just provincial. We stand for something.' I mean, in a way, Obama's standing above the country, above - above the world. He's sort of God. He's going to bring all different sides together.

Theresa May and her advisers should understand that to rebuild faith in the competence and integrity of our government, transparency is vital. It shines light on the good as well as the bad. And it leads to better-informed decisions, therefore better outcomes.

One of the most persistent misconceptions about blindness is that it is a curse from God for misdeeds perpetrated in a past life, which cloaks the blind person in spiritual darkness and makes him not just dangerous, but evil.

The room where I am lodging is stupendous. Thank God I am as fit as a fiddle.