Simon Sinek- Start with Why.

Why should we start with the Why?

The ability to motivate people is, in itself, not difficult. It is usually tied to some external factor. Great leaders, in contrast are able to inspire people to act. Those who are able to inspire give people a sense of purpose or belonging that has little to do with any external incentive or benefit to be gained. Those who truly lead are able to create a following of people who act not because they were swayed, but because they were inspired.

Please find the video here.