Later generations will regard Mengenlehre (set theory) as a disease from which one has recovered.

Point set topology is a disease from which the human race will soon recover.

It is by logic that we prove, but by intuition that we discover. To know how to criticize is good, to know how to create is better.

There are no solved problems; there are only problems that are more or less solved.

The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful.

Doubt everything or believe everything: these are two equally convenient strategies. With either we dispense with the need for reflection.

If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living

It is through science that we prove, but through intuition that we discover.

Geometry is the art of correct reasoning from incorrectly drawn figures.

One geometry cannot be more true than another; it can only be more convenient.

It is far better to foresee even without certainty than not to foresee at all.

Hardly anyone understands the principles behind magic, "scoffed Betony. "It's too difficult.

What I wish to show when I paint is the way I see things with my eyes and in my heart.

We do not die because we have to die; we die because one day, and not so long ago, our consciousness was forced to deem it necessary.

How can I create a better world? The more you reflect, the more your life will move into the answer.

There are some things which cannot be learned quickly, and time, which is all we have, must be paid heavily for their acquiring.

Did you ever get the feeling that the world was a tuxedo and you were a pair of brown shoes?

My dresses are very reasonably priced, for dresses that are cut on the body.

American citizens were targeted and nothing is going to be done about it.

As a rule, ladies of the Royal Family wear light coloured clothes because such colours are more discernible against a great crowd.

I was pretty much a minimalist. I liked a lot of black at the time, which is very different from my wardrobe now, because I live in color.