The most important value was in the form of The 'Code of Hammurabi' which served as a kind of constitution for the Babylonians. law and justice were the basic concepts of the time and the key concept was "An eye for an eye".
King was considered the reflection of God on earth and his power was thought to be invested by god himself.
Astronomy and astrology had a special place in Babylonian society which demonstrates their love for knowledge as well.