When something doesn't go exactly to plan, money is tight or a business is struggling - see it as a challenge rather than a failure. Look outside the box and try and find a solution - you'll be surprised how many great opportunities and possibilities arise when things look bad. You've just got to open your mind and not be afraid of sticking your neck out!

The funny thing is people won't let me pay for things. I'll be in a restaurant and the manager will say, 'Oh no, it's on the house.'

What can you do to make a difference? And why should you do it? (...) the scale of one's social investments doesn't matter. What matters is that you operate as a force for good at every scale available to you.

The truth is this: the Earth cannot provide enough food and fresh water for 10 billion people, never mind homes, never mind roads, hospitals and schools.

Everybody has a camera on their phone these days, everybody wants a selfie or a picture, and the moment one person starts taking a picture everybody congregates around so I've become quite a fast walker. I don't like saying, "No," to people but by walking fast one might be able to avoid the first photo.

The best way of learning about anything is by doing.

A little humour is good for the soul - regardless of how old you may be.