Although Epicurus was less of a thrill-seeker than his hedonism implies. For Epicurus the best human condition was a state which he called ataraxia, meaning tranquility.
After all, according to Joel Feinberg's psychological egoistic hedonism, it is human nature to focus only on the present convenience and to shirk all labor if they can.
The word hedonism comes from the ancient Greek hedone, meaning pleasure and some of the earliest recorded hedonists were Greek: Democritus, Aristippus, and most famously, the 4th century BCE philosopher Epicurus.