Bliss's work has been adopted by international signmakers and icon designers around the world, but his purpose was much greater than that. He believed that, through clear and unambiguous writing, we could change how people think. A phrase such as "we support our troops" would, in Bliss, contain a built-in contradiction. In Bliss, that phrase contains a symbol that means "holding up" and one that means "falling down." There are hundreds of other examples in the book, which I highly recommend.
You can find and order rare books like this (or any other books US libraries) to be delivered to you free by your local library. Ask about Interlibrary Loan and use the WorldCat website (http://worldcat.org) to find them.
These symbols are very interesting but I'm not sure that we should be choosing writing systems based on the presence of comforting oxymorons. That doesn't seem like a valid form of reasoning at all.
I mean, I hate to bring up Orwell because it's so cliche, but that's really Orwellian.
“Don’t you see that the whole aim of Newspeak is to narrow the range of thought? In the end we shall make thoughtcrime literally impossible, because there will be no words in which to express it.”
This is a good place to point out that the symbols were not meant to replace spoken languages; there is no verbal component to Bliss. It's more like a Tower of Babel idea, that misunderstandings between people and obvious falsehoods might be more easily spotted and corrected.
Check out the book if you get a chance. He can explain it much better than I did! :-)