“There is a certain sense in which I would say the universe has a purpose. It's not there by chance.”

“This book is about physics and its about physics and its relationship with mathematics and how they seem to be intimately related and to what extent can you explore this relationship and trust it.”

“While we are actually subjected to them, the 'moods' and 'spirits' of nature point no morals. Overwhelming gaiety, insupportable grandeur, sombre desolation are flung at you. Make what you can of t...”

“...[N]ature generally in the distribution of her capacities has adapted the means to the end... [so nature's] true destination must be to produce a will, not merely good as a means to something els...”

“Morality is simply the attitude we adopt towards people we personally dislike.”

“The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives.”

“[I]sn't it sad to go to your grave without ever wondering why you were born? Who, with such a thought, would not spring from bed, eager to resume discovering the world and rejoicing to be part of it?”

“I have not yet lost a feeling of wonder, and of delight, that the delicate motion should reside in all the things around us, revealing itself only to him who looks for it.”

“Not everyone may not think the way you do.”

“I think you're wrong.""Think what you like.”

“To think, to think, even with a split second left - to think was the only hope.”