Kitaplar birinin aklının ürünleridir.
- Books are the offspring of one's mind.
Birinin çözümü, ötekinin çözümünü kanıtlayabilir.
- The solution of one may prove to be the solution of the other.
... this worked famously until one day, a mathematician in the back asked a very difficult question. ...
... So one of our unique systems is here, showing. ...