If the maths hurt you...don't give up, do persevere as this book is amazing. Read it carefully and slowly even if it's just a page a day. If you find that you are really stuck and need an alternative method of concieving complex concepts then use wikipedia or mathworld.com as a reference back-up or second narrative. Although you can skip the math-heavy bits and just read the text and get a vaguely decent understanding of physical laws, but to do so would be to deny yourself the extraordinary beauty and elegance of mathematical reasoning as applied to universal phenomena.
This book is unique - Proffesor Penrose is among the best mathematical physicists of the modern era and yet he has sufficient empathy with the lay-man to take you by the hand and guide from the very basics of pythagoras up to the giddy-heights of quantum mechanics.