You see, I get such fun out of thinking that I don't want to destroy this most pleasant machine that makes life such a big kick.

What is necessary for 'the very existence of science,' and what the characteristics of nature are, are not to be determined by pompous preconditions, they are determined always by the material with which we work, by nature herself. We look, and we see what we find, and we cannot say ahead of time successfully what it is going to look like. ... It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions.

The female mind is capable of understanding analytic geometry... The difficulty may just be that we have never yet discovered a way to communicate with the female mind. If it is done in the right way, you may be able to get something out of it.

Don't pay attention to "authorities," think for yourself.

To test whether you have learned an idea or a definition, rephrase what you just learned without using the new word.

I learned from her that every woman is worried about her looks, no matter how beautiful she is.

No problem is too small or too trivial if we can really do something about it.