I never really agreed with this statement until I read Think & Grow Rich by Napoleon Hill and realised that I had thought it meant you should be over-confident in things you aren’t any good at! Now I realise that it means that by telling yourself (not others) everyday, that you can achieve something, you can build your own faith or belief in yourself to achieve it! So think it, build it and then do it! A great new affirmation. What’s yours?