Pinpoint accuracy isn't as significant as one might think. A reasonably good estimate can still greatly assist in managing these environmental issues far better than not attempting to calculate it at all.

In large organizations, a small group of leaders can hold the organization's capacity to change hostage to their own personal willingness to adapt and change – they are the gatekeepers – and even if they have the best will in the world, there simply will not be enough of them to deal with the complexity that we have in the environment around us.

Studies show that to get an MBA and to be a high-level executive you need to be a standard-deviation above the norm (have an IQ of 114 or more). After that, it turns out there's a negative relationship between IQ and leadership effectiveness. Perhaps because at that point people become narcissistic or egocentric.

Bill Gates of Microsoft is on-record as saying, 'Microsoft would not function as a company in the way that it does without operations in Israel.'

I think that single trait — self-awareness — or rather, that skillset, outweighs all the others put together. You're filtering every experience you have with others through your own perceptions, your own biases, your own reactions and instincts. So you have to know yourself first before you can truly know anyone else.