It takes time to ruin a world, but time is all it takes.

Neatness is a crowning grace of womanhood.

Nothing can be more destructive to ambition, and the passion for conquest, than the true system of astronomy. What a poor thing is even the whole globe in comparison of the infinite extent of nature!

Behold a universe so immense that I am lost in it. I no longer know where I am. I am just nothing at all. Our world is terrifying in its insignificance.

A true philosopher is like an elephant; he never puts the second foot down until the first one is solidly in place.

Mathematicians are like lovers. Grant a mathematician the least principle, and he will draw from it a consequence which you must also grant him, and from this consequence another.

It is the passions that do and undo everything.