Verified answer

it means "get your donkey out of my soup"

真理 is pronounced "shinri". It means truth.

Please have a look at the following online dictionary of YAHOO

http://dic.yahoo.co.jp/dsearch?enc=UTF-8&stype=0&d...

There are two words for truth in Japanese as far as I know.

On is 真実 (shinjitsu), and the other one is 真理.

Have a look at example sentences for shinjitsu too:

http://dic.yahoo.co.jp/dsearch?p=%E7%9C%9F%E5%AE%9...

を is not a subject marker. It is an object marker.

が is the subject marker.

求めていた is one word. It is pronounced "motomete ita".

The infinitive is 求める. It means to look, to seek.

http://dic.yahoo.co.jp/dsearch?p=%E6%B1%82%E3%82%8...

So the translation goes:

having looked for the truth.

I (or whoever) was seeking truth.

shinri