Heart of Gold by Sharon Shinn

On a planet torn apart by class and economic divisions and feuding factions, a scientist and a rebel are drawn together in a forbidden love that could change their world forever….

Nolan uses his rational powers of observation to examine more closely the privileges he was born to enjoy—and the people he was raised to despise.

Katrini follows her fiercest passions in the struggle to overthrow a legacy of hate—one that has poisoned her family for generations.

Between rich and poor, strong and weak, intellect and feeling, only one thing could bring these two opposites together: a passion that is strictly forbidden.