The next grand extensions of mathematical physics will, in all likelihood, be furnished by quaternions.

[Examiners] spend their lives in discovering which pages of a text-book a man ought to read and which will not be likely to 'pay'.

Don't walk out of here. I can't lose you.

There's only one passion in most artists more violent than their desire for admiration: their fear of identifying the nature of such admiration as they do receive.

The what is so much more important than how.

[Should] Iraq acquire fissile material, it would be able to build a nuclear weapon within a year.

The disappointment of losing is huge.

I can't write without a reader. It's precisely like a kiss - you can't do it alone.

In Physic, things of melancholic hue and quality are used against melancholy, sour against sour, salt to remove salt humors.

I'm living for myself, everything I do is to achieve my goals, so I'd love to stop caring so much about what I want by then and maybe focus on a bigger picture.

What madness is this, inviting sable Death by warfare? It always hovers close and comes unforeseen on silent steps.

We wouldn't be artists, writers, painters, musicians, if we weren't sensitive.