Most entrepreneurs will admit luck plays a part in success.

And in the process, we have come up with fuels - algae-based fuels, isobutanol-based fuels and other fuels - that we think will power the planes in the future so that, you know, by 2020 I hope that our planes will be powered on fuels that are clean fuels and are not polluting the environment so that we'll have a green airline and an airline that actually has fuels that will be hopefully cheaper than the dirty fuels of the past. So [we're] doing good and also turning a profit at the same time.

Most people assume that a record shop's success lies in selling records. In fact, Virgin's success both in mail order and the record shops lay in skill at buying records.

Be authentic and organic. It can't be forced or it won't work. And most importantly, have fun.

Never to be frightened of taking risks and always follow your instincts!

Focus on your business strengths and keep its weaknesses away from the competition or public.

There are quite a few things I've done that even I thought might have been one step too far. But if you are willing to make a fool of yourself and make people smile, as long as you do it with a sense of fun, you can get away with it.