essential things

Interesting letter from Einstein:

Now that I have quite openly stated our differences in intellectual convictions it is still clear to me that we are quite close to each other in essential things, i.e. in our evaluation of human behavior ... I think that we would understand each other quite well if we talked about concrete things.

Einstein's poem on Spinoza

"On Spinoza's Ethics"

I don't think it's the greatest poem but E makes up for it in other areas. ;)